[mailop] Globally Addressable Communication Systems

erent land-grab nature of commercial entities, there will never be another email. So, if we don't hang on to what we have now by being part of the infrastructure, it will be lost forever. This is true and important. -- Andrew C. Aitchison Kendal, UK an

Re: [mailop] Ask for commercial smtp gateway

ot; or "Outlook" might be "reasons". * I can imagine circumstances where being close to the receiving machines might might sense too. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ ma

Re: [mailop] [E] Re: Super dumb gmail request ...

On Tue, 27 Aug 2024, Colin Johnston via mailop wrote: Have you tried an normal android phone without a sim as Google should send the 2fa to that as well as sms ? How would she add the phone to the account *without* the one-time key she wishes to receive ? -- Andrew C. Aitchison

Re: [mailop] oauth2 for mail clients

hich of these I should be asking for. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] oauth2 for mail clients

.well-known/openid-configuration https://accounts.google.com/.well-known/openid-configuration I'll have to read https://openid.net/specs/openid-connect-discovery-1_0.html to see why the literal domain.com in one but not the other (and the other version doesn't work for

Re: [mailop] Echospoofing

a job spec that would let them know about and fix the issue. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Invalid format and contents of DMARC reports

use the input, rather than the metadata, to determine which decompressor to use (but using metadata might be quicker). -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Mailserver software

play nicely on phones ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Mailserver software

exim (c1996) the version number was bumped from IIRC 0.65 to 2.65 :-) -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Mailserver software

user support is more common amongst mailserver maintainers. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Domains discrimination

the TLD is" problem since it's not just the last segment. Since the OP is new here, i will mention th Public Suffix list https://publicsuffix.org/ -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk __

Re: [mailop] Cloud hosts for responsible mail servers?

per username, which works well for me though maybe not for the OP with one user and 10 domains, but I am paying less than his five bucks per month. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop

Re: [mailop] Why an SPF hard bounce on ~all ?

eader addresses ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

[mailop] BIMI and ARC

ts (or possibly swaks on my machine). -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Yahoo no longer accepting email forwards?

DMARC) I had not realized that SRS was possible without SPF. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] (Mis)use of DKIM's length tag and it's impact on DMARC and BIMI

things can happen. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Doesn't ARC substitute DKIM at Gmail inbound?

warded the mail, but cannot prove that it really came from the original sender. I think that this way GMail can reject the email, or put it in the spam folder, but without blaming you. I am not sure that ARC is supposed to do what we think it is. -- Andrew C. Aitchison

[mailop] MX records required - Was Re: Problems with invoices.premierinn.de and postmas...@premierinn.de

but not any record addresses ? TonyFinch> Too late for that by about 10 years, I'm afraid. Looks like that dream is getting further away :-( We wont will that fight if we don't push for it. On 25.04.24 14:59, Andrew C Aitchison via mailop wrote: Should someone here not know, RFC 7

Re: [mailop] Problems with invoices.premierinn.de and postmas...@premierinn.de

ve them a heads-up. Kind regards, Paul PS: Of course, their software does not detect rejected messages/failed deliveries, and their staff claims, it’s in the spam folder. -- Andrew C. Aitchison Kendal, UK

Re: [mailop] Off-Topic - VMWare ESXI 7.0

I'm stuck with the architecture for the next couple of years. So you are looking for someone to add support for that architecture to Proxmox, maybe in a consortium with other interested parties ? [ I am *not* bidding, nor interested in joining the consortium. ] -- Andrew C.

Re: [mailop] mailop and DKIM signatures

more about this software ? Thanks, -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Google unsolicited mail rejected with 421

Our inbound queuerunner operates in permanent queue running mode which could lead to a retry every minute if the queue is nearly empty. This is more or less "aggressive" ... An *inbound* queue runner sounds like a special case - I would expect it to be more "aggressive". -- Andrew

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

in security. For IMAP and POP, encryption is end-to-end, but there you know, and presumably have control over, your users. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

supporting such a device (although I was aware that people would have to decide again about allowing plain). Has anyone checked what traffic is still using TLS 1.0 or TLS 1.1 ? -- Andrew C. Aitchison Kendal, UK and...@aitch

[mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

is not new for openssl, but it is for gnutls. Given that the advice for SMTP is often to allow tls 1.0 and 1.1, rather than have it revert to unencrypted, this will is something to watch out for. -- Andrew C. Aitchison Kendal, UK and...@aitch

Re: [mailop] Filter out emoji from email adresses

several list messages last month with mail addresses with what looked to me like CJK characters. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https

Re: [mailop] Contact of postmaster for hostedemail.com domains

st* thing they would like to do is to complain to any mail provider. They just take it for granted that "it is so" that the recipient sometimes doesn't get the email, and you have to live with it. If nobody complains, then a single complaint is likely to get at

Re: [mailop] One click unsubscribe in mailing list messages

I provide my opt-out preferences by ... "visiting a single Internet Web page" ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

[mailop] CloudSererblocks - was Re: Outgoing Spam from Microsoft IPs

nders ... I don't have traffic from Alibaba so cannot judge for myself. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Is forwarding to Gmail basically dead?

customers put in clauses guaranteeing no spam from addresses associated with with the customer's mail. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop.org https://

Re: [mailop] zen.spamhaus.org

rtner Koli-Lõks OÜ (reg. no. 12815457, VAT ID EE101811635) Tallinn, Estonia tel. +372-5883-4269, https://www.koliloks.eu/ ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Andrew C. Aitchison

Re: [mailop] Support contact for Shaw.ca

is indeed bare linefeeds, your bounce message may be leading him astray by suggesting he has sent bare carriage-returns. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop

Re: [mailop] Anyone else noticing an increase in spam from Office365 distribution lists?

3 or 4 specific subdomain additions to a safelist from the hypothetical block rule, and that would be it. - Mark Alley -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] BIMI and multiple hops

On Sat, 13 Jan 2024, Benny Pedersen via mailop wrote: Andrew C Aitchison via mailop skrev den 2024-01-13 07:16: [ Wearing an MTA developer's hat. ] +1 I see that an MTA is supposed to remove existing Authentication-Results and BIMI-Indicator headers, and that generally an MUA may use

[mailop] BIMI and multiple hops

t MTA received a message with these headers there is a risk that the MUA would trust them. Would it help if MUAs that don't actively support BIMI at least removed these headers when delivering to local mailboxes ? -- Andrew C. Aitchison Kendal, UK

Re: [mailop] BIMI boycott?

of costs that far exceed those of the message itself. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] BIMI boycott?

hough one of the aims of BIMI is to encourage correct use of SPF/DKIM/DMARC. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Malformed To: header

so it was particularly visible. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] ECDSA DKIM validation?

xplain how we will all know when to switch ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Merry Christmas from Google?

ir filters. If they use forwarders, SPF will fail in the case the envelope sender isn't rewritten. Check your logs for that. I think Jarland meant that his system allows users to forward received messages (to Google). -- Andrew C. Aitchison Kendal, UK

[mailop] Historical spam loads - was Re: Google rate-limiting more aggressively than usual?

ively fewer messages I can only imagine that is because their strike rate is better, which is *more* worrying. What have I misunderstood ? but I wouldn't be at all surprised if some sites still have a 90%+ spam burden. -- Andrew C. Aitchison Kendal, UK

[mailop] ClientID - was Re: Microsoft lays hands on login data: Beware of the new Outlook

On Sat, 11 Nov 2023, Carsten Schiefner via mailop wrote: Hi Andrew, Am 11.11.2023 um 14:25 schrieb Andrew C Aitchison via mailop : […] I guess we need to look at ClientID https://datatracker.ietf.org/doc/draft-storey-smtp-client-id/ (SMTP) https://datatracker.ietf.org/doc/draft-yu-imap

Re: [mailop] Microsoft lays hands on login data: Beware of the new Outlook

r.ietf.org/doc/draft-storey-smtp-client-id/ (SMTP) https://datatracker.ietf.org/doc/draft-yu-imap-client-id/ (IMAP) and OAuthBearer RFC7628 to see whether either or both could help us identify the incoming client sessions ? -- Andrew C. Aitchison Kendal, UK an

Re: [mailop] Microsoft lays hands on login data: Beware of the new Outlook

rd, alpine, mutt and fetchmail to do to access Microsoft-hosted mailboxes ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] valid DKIM-signed email spam-classified @gmail only; correct PASS @ other server recipients ?

miscategorized as SPAM. Maybe the spammers are more likely to use ed25529 than legitimate mailers so GMail think it indicates spam ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list

Re: [mailop] fastmail and sender score snafu

rding and the forwarding information is stored on the mailstore, he wont know whether the domain is local or remote until the mail store comes back on line. -- Andrew C. Aitchison Kendal, UK and...@aitchison.

[mailop] DMARC report rejections - was Re: Recent increase in GMail 421-4.7.28 responses

, you must check that the report domain is willing to accept these reports. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Google not sending DMARC reports since 9/25

Sept. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Zero-day RCE for exim - whacky stats?

On Sat, 30 Sep 2023, Carsten Schiefner via mailop wrote: Hi Simon, On 30.09.2023 10:18, Simon Arlott via mailop wrote: On 30/09/2023 08:50, Andrew C Aitchison via mailop wrote: I see that there is an Exim release candidate out on test at the moment https://lists.exim.org/lurker/message

Re: [mailop] Zero-day RCE for exim - whacky stats?

m/security/2023/09/critical-vulnerabilities-in-exim-threaten-over-250k-email-servers-worldwide/?comments=1 gives a more plausible stat. [ A quick grep suggests 12 other mailop threads this year have mentioned exim. ] -- Andrew C. Aitchison Kendal, UK

Re: [mailop] Zero-day RCE for exim - whacky stats?

On Sat, 30 Sep 2023, Andrew C Aitchison wrote: On Sat, 30 Sep 2023, Jay R. Ashworth via mailop wrote: I haven't even heard exim *mentioned* in like 20 years; these stats can't be right, can they? https://www.bleepingcomputer.com/news/security/millions-of-exim-mail-servers-expos

Re: [mailop] Microsoft announces DANE for Exchange Online Inbound starting next year

and vice versa. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Sendlane Inc [ESP] New IP range warming notice

:https://rdap.arin.net/registry/ip/38.152.0.0 ... You may wish to check your rwhois data. I have also seen "SWIP" mentioned in similar cases ... -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk

Re: [mailop] OT: OpenTable

hat sort of response when tipping, then I am impressed. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Antivirus/anti-phish email scanning

u want to see how dozens of AV products get on with any particular virus Use AV products by all means, but don't assume they will catch everything. Do have plans for if/when you find something; both before and after it causes harm. -- Andrew C. Aitchison

Re: [mailop] Guide for setting up a mail server ?

paper mail; why not email ? Former staff don't have door keys. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Please don't Cc: me, use only the list for replies

On Wed, 12 Jul 2023, ml+mailop--- via mailop wrote: On Wed, Jul 12, 2023, Andrew C Aitchison via mailop wrote: Please could you indicate who you are and, Why? Sorry, I meant to ask for a name or an alias. Why ? Because I don't believe that "the paranoid curmudgeon from esmtp.or

Re: [mailop] Please don't Cc: me, use only the list for replies

d, if appropriate, who you work for or represent ? Thanks, -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] SendGrid is deleting your mail

I would think that considering the MX when overriding the response code would be a worthwhile addition to try, whether the machine learning is AI-based or hard coded. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___

Re: [mailop] DMARC and subdomains

for the "v" tag. "v=DMARC1;p=none;sp=none;pct=10;rua=mailto:dmarc-mas...@eu.org;ruf=mailto:dmarc-mas...@eu.org"; Thanks, -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop m

Re: [mailop] DMARC check case sensitive domains

river in egypt. | 4096R/20CC6CD2 - 6D40 1A20 B9AA 87D4 84C7 FBD6 F3A9 9442 20CC 6CD2 ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop -- Andrew C. Aitchison

Re: [mailop] SPF: Does include: a host without TXT entry invalidate the whole SPF entry?

reports so far this year. dmarc.ruf reports are not common, but on a busy site there will be enough to need to have a policy for them. I hadn't heard of the SPF tags before Friday. -- Andrew C. Aitchison Kendal, UK and...@aitchison.

Re: [mailop] SPF: Does include: a host without TXT entry invalidate the whole SPF entry?

rrors by most SPF checking sites... I asked one of the checker websites about that and recieved the reply: RFC6652 is a proposed standard from 2012, but was replaced by DMARC in 2015. DMARC reports on both SPF and DKIM. Benoît, does the domain in question receive DMARC reports ? -- And

Re: [mailop] Microsoft Office365 not rejecting emails when instructed so by SPF recored?

es to Google what Musk did to Twitter ... -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Official traffic shaping rule sources?

t see any advantage to put against the cost of an extra connection setup and closedown ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/lis

Re: [mailop] SPF behavior on email forwarding

/rpr.html (dated Sept 2004) which explains how SRS (without SPF) is the answer to the problem SPF was supposed to solve ! [ I was actually looking for the theoretical slightly-open relay issue which made me not enable SPF or SRS for a long time. ] -- Andrew C. Aitchison Kendal

Re: [mailop] SPF behavior on email forwarding

rwise it will be hell on the amount of emails we'll handle. Many people use SPF failure (and DKIM, DMARC and ARC) to increase spam-score, rather than an all-out block. Do you have an actual measure of how much spam this is currently blocking ? It *may* not be as bad as you thin

Re: [mailop] linodeusercontent.com/googleusercontent.com, I'm so done with you

#x27;t come across anyone. Can you come up with a business model that encourages this ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] mailgun anybody? (variable sender address) time

On Sat, 25 Mar 2023, Slavko via mailop wrote: Dňa 25. marca 2023 17:11:48 UTC používateľ Andrew C Aitchison via mailop napísal: On Sat, 25 Mar 2023, Grant Taylor via mailop wrote: I never understood different envelope senders for each attempt of a given message. -- I can see different

Re: [mailop] mailgun anybody? (variable sender address) time

submission time until delivery time. I guess that having something to trace individual attempts though the logs is useful if you are working at scale and the typical user is more likely to report the sender address than the message id ? -- Andrew C. Aitchison Kendal, UK

[mailop] SMTP equivalent of HTTP 30x redirect ? - was Re: O365 throttling email forwards

ce, but is this option technically available ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Gmail blocking of good customer

every 2-3 months when they promote a new event. I think you should try and send at least ~100 mails every day to keep an IP warm. Otherwise you're a ghost... So now you have to send spam to avoid being thought to be a spammer ? -- Andrew C. Aitchison Kenda

Re: [mailop] Compromised email account trends

chine/user pairs as long as an IMAP connection is using IDLE. On Wed, 22 Feb 2023, Giovanni Bechis via mailop wrote: this would not work for me, on my servers ~6% of imap logins are from bots. *Successful* IMAP logins ? -- Andrew C. Aitchison Kendal, UK

[mailop] Outgoing filtering Re: Cyren

email account providers would filter their outgoing mail too, there would be significantly less spam. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org

Re: [mailop] [External] Re: verizon email-to-text gateway mail deferred evening and night

On Sun, 8 Jan 2023, Andrew C Aitchison via mailop wrote: On Sun, 7 Jan 2023, John Levine via mailop wrote: But more to the point, why do you care? The number of phones these days that can get SMS but not email rounds to zero, so if someone wants to send you mail, they can send you mail and

Re: [mailop] [External] Re: verizon email-to-text gateway mail deferred evening and night

e SMS had a reputation for stronger security and privacy than email. I don't know how much that reputation was or is deserved. -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing l

Re: [mailop] verizon email-to-text gateway mail deferred evening and night

On Sat, 6 Jan 2023, John Levine via mailop wrote: If it's not worth 1c to get your messages out, perhaps this would be a good time to reconsider why exactly you're sending them in the first place. If only we could say that to spammers. -- Andrew C. Aitchison

Re: [mailop] IBM: [to unsubscribe] please enter your first, last name, email and country

unsubscribe just by clicking "Confirm" or something like this on the page you get to via the link - as many legitimate newsletters already do. Hmm. This list has two unsubscribe links (https: and mailto:) but neither is personalised. -- Andrew C. Aitchison

Re: [mailop] SPF (and other email security protocols) Survey

ical degree in the UK) and a friend of my wife's practiced alternative medicine for many years before starting a PhD in that area. If VT PhD students don't have the experience needed in the topics they study, then shouldn't VT change either the students or the topics ? -- A

Re: [mailop] Google Translate provide spammer and phishing reputation

ate.google.com and .goog Is it worth an article in redit or similar ? Does anyone have access to proofpoint urldefence.com and similar to see what they do ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ m

[mailop] SPFBL - was Re: Recommendations for host with good IP reputation or use external SMTP?

he spammers to pay too ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] blocking t-online.de in OpenSMTPD

into other languages popular with readers of this public list. The content of that regex might need to be expanded to include other reverse domains they use. Thanks to Florian Obser for pointing out the errors in my first run at this. --lyndon Thanks, -- Andrew C. Aitchison

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

ject message saying that we believe the recipient will not be able to reply to T-Online senders. But of course, sending a clear and accurate reject or bounce message to T-Online is no guarantee that it will reach the sender. -- Andrew C. Aitchison Kendal, UK

Re: [mailop] Gmail as well as Google Worskapce refuse all email from my domain

#x27;s problem and they have an incentive to a) get google to accept mail from o365 and b) keep the flow from o365 to gmail clean enough the Google don't block you again. I don't need your answers to the above questions. -- Andrew C. Aitchison Kendal, UK

Re: [mailop] gmail: Benefit of a generic SPF-record?

0/0 -> use default = spam. If you send 100 messages and one is marked "not spam", your score becomes spam/not-spam 0/1 -> not-spam. Plausible ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___

Re: [mailop] two openssl (in OpenDKIM) questions for the masses

her than any openssl. (Exim, as shipped by the Exim team, appears to use OpenDMARC but not OpenDKIM). -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list

[mailop] Exchange (and GSuite?) versus open source - was Re: The oligopoly has won.

as I can see Exchange does some calendaring which only works with Outlook and which has always looked like the tail wagging the dog from my perspective (why would I change my entire mail system to use a calendaring system ?). -- Andrew C. Aitchison Kendal, UK

Re: [mailop] The oligopoly has won.

ether dkim on this token would confirm that the message sent and the message received are the same, but I don't see what would be gained by attaching the token to a new message - using the URL directly would be a more efficient way of triggering the denial of service attack *on the origina

Re: [mailop] SMTP noise from *.bouncer.cloud

d the applicant a copy of their completed form. If this bounces, then you ask them to correct the address. Of course, if they give *someone-elses* email (whether by accident or deliberately) you have just mailed personal data to a third party ... -- Andrew C

Re: [mailop] SMTP noise from *.bouncer.cloud

personal data in GDPR terms, in principle would you be happy to do that ? Coincidentally, I have just been helping someone enable SMTP VRFY in exim. I suppose that you do use VRFY when it is availble ? -- Andrew C. Aitchison Kendal, UK and

Re: [mailop] Microsoft Office365 blocking non Oauth2 authentication on IMAP and SMTP.

ols running. Microsoft Support states, they won't re-enable tokenless authentication and the provide no help at all to get tools back online which do not work any more. I wonder: How do other Microsoft Office365 customers mitigate this situation? --

Re: [mailop] Disabling TLS 1.0 and 1.1 for MTA to MTA communication

ss is that v1.2 might share those flaws even if v1.3 does not). -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop

Re: [mailop] Disabling TLS 1.0 and 1.1 for MTA to MTA communication

UC the "No STARTTLS" people have found that, when connecting a TLS library to application code, allowing connections to be upgraded from clear to encrypted produces many more bugs than just requiring the connection to be secure from the start. -- Andrew C. Aitchison

Re: [mailop] Disabling TLS 1.0 and 1.1 for MTA to MTA communication

OpenSMTPd default cipher list on my side… their choices were just a tad dusty… Long ago I has a support ticket from a user visiting a four letter national security centre complaining that he could not ssh to our department. Translated, the error message we were giving was "your codes

Re: [mailop] HR 8160 and SB 4409: The "You're not allowed to run political campaign email through your spam filter" act

Yes, but anyone providing email services for large companies may have to keep an eye open. For example those parameters mean that Boeing, or anyone filtering email for Boeing has to engage with the bill, but Barracuda doesn't have to except when acting for particularly large companie

Re: [mailop] Weirdly formatted messages from AOL Webmail or Yahoo

split ? RFC6532 limits lines to 998 octets. There is a view that this is out of date and many mail senders do not stick to this limit, but equally some receiving systems attempt to enforce it. 998 octets is a MUST; there is also a 78 character SHOULD limit. -- Andrew C. Aitchison Kenda

Re: [mailop] So, Sendgrid / Zoom, planning on actually doing anything about webinar spams?

re is at least one legitimate reasons to allow this: how else could a customer change ESP ? -- Andrew C. Aitchison Kendal, UK and...@aitchison.me.uk ___ mailop mailing list mailop@mailop.org https://list.mailo

Re: [mailop] Google's Request to the FEC about Allowing Political Email to Bypass Spam Filtering

tical' tab, just like the 'Promotions' tab. Wouldn't that be labelling, which would mean they need explict permission before enabling it for each user ? -- Andrew C. Aitchison Kendal, UK

Re: [mailop] opendkim replacement

On Mon, 4 Jul 2022, Edwardo Garcia via mailop wrote: Halo, What are we using this days in replace opendkim which is long broken abandonware? For anyone using Exim, there is builtin support (in and out) which does not use opendkim. -- Andrew C. Aitchison Kendal, UK

Re: [mailop] Interesting question from a team member, MX chaining, list-manage.com

rd as well. AND no record. Otherwise, if there is no MX record but there is A record, mail will be delivered to the mailserver A record points to. Of course assuming that there is a mailserver on that machine that listens on port 25... -- Andrew C. Aitchison

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