Re: [mailop] Sendgrid phish of the day

2023-12-13 Thread William Kern via mailop
yeah our customers got a ton of those. Fortunately, most of them don't even know who or what is twillio/sendgrid -wk On 12/13/23 2:53 PM, John R Levine via mailop wrote: Phishing their own customers.  I suppose in a karmic sense they deserve it. (No, CAUCE is not a customer.) Regards, John

Re: [mailop] sender domain reputation

2023-03-22 Thread William Kern via mailop
On 3/21/23 6:16 PM, fh--- via mailop wrote: Hello Does sender domain itself have influence on delivery reputation? is new domain worse than old one? and xyz/info/pub/... domains worse than .com one? Regarding TLDs. Many orgs (including this one) Use a tool such as

Re: [mailop] RackSpace Security Issue

2022-12-05 Thread William Kern via mailop
, Louis Laureys via mailop wrote: This is the only thing I came across: https://cyberplace.social/@GossiTheDog/109446533829121659 Louis Op maandag 5 december 2022 om 19:50, schreef William Kern via mailop: I was contacted by a website customer over the weekend, who is affected

[mailop] RackSpace Security Issue

2022-12-05 Thread William Kern via mailop
I was contacted by a website customer over the weekend, who is affected by the RackSpace Exchange "security issue". At this point, they are transitioning to O365 so they should be fine going forward, but aside from email interruption they are not sure how they are affected. Their main

Re: [mailop] [External] Re: Try to understand *.onmicrosoft.com

2022-11-09 Thread William Kern via mailop
yes, I have one customer who sends me email using that format jxx@xx.onmicrosoft.com and the emails come to us from outlook.com servers. -bill On 11/9/2022 2:23 PM, MRob via mailop wrote: On 2022-11-09 13:54, Kevin A. McGrail via mailop wrote: Just a note that it is not necessarily

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

2022-10-19 Thread William Kern via mailop
Us as well. We are in the US. That is OUR IP space announced by our ASN. So I assume we would qualify as a commercial ISP. That IP (and for the most part our IP space) is clean. That IP has been active for years. I doubt they have seen our IPs before as our customers here in Southern

Re: [mailop] The oligopoly has won.

2022-09-14 Thread William Kern via mailop
On 9/14/2022 1:48 PM, Grant Taylor via mailop wrote: I would urge you to be mindful of what "quarantine" means in different email specific contexts. Multiple MTAs have the concept of quarantining messages (I know that Sendmail and Postfix do and I believe that others do too) wherein the

Re: [mailop] The oligopoly has won.

2022-09-14 Thread William Kern via mailop
On 9/14/2022 7:49 AM, Thomas Walter via mailop wrote: Your user's opinion on that will change as soon as someone missed a bid or contract, because it hid in the spam folder :). If I send someone an email and get a reject, I know they didn't receive it. It's my job to make sure they get

Re: [mailop] gmail changes today?

2022-06-07 Thread William Kern via mailop
We saw that as well, but some of the cases involved non-existent or malformed spf records. When those were fixed Gmail began to accept their emai. That may have been a timing coincidence but at least we solved a future problem for them. -wk Sent from my iPad > On Jun 7, 2022, at 6:28 PM,

Re: [mailop] MX advice for small operator

2021-12-16 Thread William Kern via mailop
On 12/16/21 9:31 AM, Sam Mulvey via mailop wrote: Hello! Short: I'm looking for advice for a reputable organization that can serve as a net-facing MX for my very small mail server.  Feel free to email me off-list with contacts or advice. I'm not ready to fully admit defeat and completely

Re: [mailop] Looking for possible mailing list hosting

2020-12-16 Thread William Kern via mailop
On 16.12.20 18:21, Scott Mutter via mailop wrote: Honestly, I see mailing lists as a dying breed (said as I post this to a mailing list).  A forum tends to work out better.  It's a pull (users pull content only if they want to receive the content) rather than a push (users are pushed content

Re: [mailop] GMail 550 5.1.1?

2020-12-15 Thread William Kern via mailop
Our customers are beginning to see these today. When I looked at https://www.google.com/appsstatus#hl=en=status earlier this morning Gmail didn't acknowledge it but I now see they are admitting to having a problem again as of a few minutes ago. William Kern PixelGate Networks.