Re: [mailop] Proofpoint SSL Cert Expired

[Neil Anuskiewicz via mailop]

I just wanted to say that I appreciated the kind messages when reporting the 
expired cert on a delegated subdomain and after. It makes my respect for the 
mailop community go way up. You’ve clearly created something great here.

Neil 
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Re: [mailop] Outlook.com: missing data in SNDS + IPs blocked on Apr 06

[Mark Dale via mailop]

On 2023-04-15 22:40, Anne Mitchell via mailop wrote:

On Apr 15, 2023, at 4:12 PM, Mark Dale via mailop  wrote:

Did you make any headway this issue? We've been having the same issues since 
April 6.

Regards,
Mark

On 2023-04-13 15:25, Fernando MM via mailop wrote:

Hi,
On Apr 06 we detected that 28 IPs were blocked in Outlook.com, all with the 
following error:
550 5.7.1 Unfortunately, messages from [185.103.9.41] weren't sent. Please 
contact your Internet service provider since part of their network is on our 
block list (S3150).


Question for each of you: Who is your service provider - i.e. from whom did you 
get the IP addresses?

Anne



Hi Anne,

The  IP addresses (for us) are from Hetzner and SwissHost.

/Mark
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Re: [mailop] Outlook.com: missing data in SNDS + IPs blocked on Apr 06

[Anne Mitchell via mailop]

> On Apr 15, 2023, at 4:12 PM, Mark Dale via mailop  wrote:
> 
> Did you make any headway this issue? We've been having the same issues since 
> April 6.
> 
> Regards,
> Mark
> 
> On 2023-04-13 15:25, Fernando MM via mailop wrote:
>> Hi,
>> On Apr 06 we detected that 28 IPs were blocked in Outlook.com, all with the 
>> following error:
>>550 5.7.1 Unfortunately, messages from [185.103.9.41] weren't sent. 
>> Please contact your Internet service provider since part of their network is 
>> on our block list (S3150).

Question for each of you: Who is your service provider - i.e. from whom did you 
get the IP addresses?

Anne

--
Anne P. Mitchell, 
Email Law & Policy Attorney at Law
CEO Institute for Social Internet Public Policy (ISIPP)
Author: Section 6 of the CAN-SPAM Act of 2003 (the Federal email marketing law)
Author: The Email Deliverability Handbook
Board of Directors, Denver Internet Exchange
Dean Emeritus, Cyberlaw & Cybersecurity, Lincoln Law School
Prof. Emeritus, Lincoln Law School
Chair Emeritus, Asilomar Microcomputer Workshop
Counsel Emeritus, eMail Abuse Prevention System (MAPS)

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Re: [mailop] Outlook.com: missing data in SNDS + IPs blocked on Apr 06

[Mark Dale via mailop]

Hi Fernando,

Did you make any headway this issue? We've been having the same issues since 
April 6.

Regards,
Mark

On 2023-04-13 15:25, Fernando MM via mailop wrote:

Hi,

On Apr 06 we detected that 28 IPs were blocked in Outlook.com, all with the 
following error:

550 5.7.1 Unfortunately, messages from [185.103.9.41] weren't sent. Please 
contact your Internet service provider since part of their network is on our block 
list (S3150). You can also refer your provider to 
http://mail.live.com/mail/troubleshooting.aspx#errors 
.


Although some of the blocked IPs were new, most of them were in use by the same 
customers for years without issues. Part of them didn't had a single spam 
report or spam trap hit in the last 3-6 months.

After making sure that these servers weren't compromised, I opened tickets at 
https://olcsupport.office.com/  and, after escalation, 
the response was that the IPs didn't qualify for mitigation at this time or that there were 
"changes in email sending volume" ( there weren't, the volume hasn't changed since we 
have limits for each IP/customer to avoid these issues )

Today I noticed that the data on Apr 06 in missing in SNDS. All other dates are 
showing up, just Apr 06 is missing.

I was wondering if anyone else experienced similar issues on Apr 06 with 
missing data on SNDS or a high number of IPs getting blocked?

Thanks.

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Re: [mailop] SPF behavior on email forwarding

[John R Levine via mailop]

In other words, SPF check is not something what helps with SPAM
here, seems that spammers adapted to it...


As far as I know, SPF was never meant as an anti-spam measure.


It was most definitely touted as an anti-spam measure.  Some of us were there.


Absolutely. Spent time listening to Meng Wong talk about it, totally ignoring 
the forwarding problem.


Which was really strange since Meng ran pobox.com, a forwarding service.

Regards,
John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly
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