[mailop] Microsoft 365 IP addresses listed on Spamcop

Hello all, I am attempting to send mail from a M365 tenancy, however, we are seeing issues with it being filtered due to the address appearing on bl.spamcop.net. "Decision Engine classified the mail item was rejected because of IP Block (from outbound normal IP pools) -> 550 mail from 40.107.107

Re: [mailop] Opinions on what qualifies as a "false positive" RBL listing that should be fixed?

On 2/14/24 15:20, Robert L Mathews via mailop wrote: I find myself having a difference of opinion with Spamhaus about a certain type of RBL listing, and I'm wondering what others think. The situation is that the Reply-To email address of a public library's "your book is due in five days" remin

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

On 2024-02-15 02:51:17 (+0800), Gellner, Oliver via mailop wrote: On 13.02.2024 at 17:05 John Levine via mailop wrote: It appears that Taavi Eomäe via mailop said: On 13/02/2024 05:16, John Levine via mailop wrote: Right now if you get a message from Gmail or Yahoo with a valid DKIM signatu

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

On Wed, Feb 14, 2024 at 10:56 AM Gellner, Oliver via mailop < mailop@mailop.org> wrote: > True, however I never came across a S/MIME- or PGP-signed spam or phishing > message - and we receive a lot of S/MIME emails. I wonder if others on this > list have made different experiences. > The spammers

Re: [mailop] Opinions on what qualifies as a "false positive" RBL listing that should be fixed?

It appears that Robert L Mathews via mailop said: >Spamhaus says they don't remove such listings, though, because by their >definition, it's not a false positive if some of the messages >are reaching spamtraps -- in other words, that addresses sending to spamtraps >are correctly listed as "This

Re: [mailop] Opinions on what qualifies as a "false positive" RBL listing that should be fixed?

I think it's very situational. But Spamhaus seems to imply that it's currently relevant, not just a one time mistake. It could be more than just poor list hygiene. Well intentioned people creating systems that are abused by spammers is something I come across daily. I'll give an example: Just

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

It appears that Gellner, Oliver via mailop said: > >> On 13.02.2024 at 17:05 John Levine via mailop wrote: >> It appears that Taavi Eomäe via mailop said: >>> >>> On 13/02/2024 05:16, John Levine via mailop wrote: Right now if you get a message from Gmail or Yahoo with a valid DKIM si

[mailop] Opinions on what qualifies as a "false positive" RBL listing that should be fixed?

I find myself having a difference of opinion with Spamhaus about a certain type of RBL listing, and I'm wondering what others think. The situation is that the Reply-To email address of a public library's "your book is due in five days" reminder system is listed in the Spamhaus HBL

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

> On 13.02.2024 at 17:05 John Levine via mailop wrote: > It appears that Taavi Eomäe via mailop said: >> >> On 13/02/2024 05:16, John Levine via mailop wrote: >>> Right now if you get a message from Gmail or Yahoo with a valid DKIM >>> signature, you >>> can be quite confident that it came from

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

> On 13.02.2024 at 10:11 Taavi Eomäe via mailop wrote: > > I've described one of the reasons why that's the case. The other reason is > probably the fact that key management is incredibly difficult. Which is also > probably why it has seen adoption in environments that simplify it - large > org

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

On Wed, 2024-02-14 at 21:31 +0900, Byunghee HWANG (황병희) via mailop wrote: > Hellow Cyril, > > On Wed, 2024-02-14 at 11:06 +0100, Cyril - ImprovMX via mailop wrote: > > That's a good argument. I can do even better: > > > > Email is not designed for spam. Stop spamming. Problem solved. > > Yes, yo

Re: [mailop] Gmail Affiliate Marketers.. getting stupid excessive... Yahoo/ATT

What are you seeing from .shop? That is often used by Shopify customers. On Wed, Feb 14, 2024 at 10:09 AM Michael Peddemors via mailop < mailop@mailop.org> wrote: > All throw away domains, .xyz, .shop, .online, they are using ATT/Yahoo > addresses, the emails are obvious.. Been reported a couple

Re: [mailop] [E] Gmail Affiliate Marketers.. getting stupid excessive... Yahoo/ATT

On Wed, Feb 14, 2024 at 7:11 AM Michael Peddemors via mailop < mailop@mailop.org> wrote: > All throw away domains, .xyz, .shop, .online, they are using ATT/Yahoo > addresses > From: RTIC backpack cooler > > Lil? Marcel? Any luck stopping these actors from your end? > Looking. Those are ATT ac

[mailop] Gmail Affiliate Marketers.. getting stupid excessive... Yahoo/ATT

All throw away domains, .xyz, .shop, .online, they are using ATT/Yahoo addresses, the emails are obvious.. Been reported a couple months back to the Yahoo people, no change to volumes.. (Note, it's all going to spam folders of course) Return-Path: Received: from mail-oo1-f78.google.com (HELO

Re: [mailop] Outgoing Spam from Microsoft IPs

On 2024-02-13 22:57, Hans-Martin Mosner via mailop wrote: We've been seeing runs of spam mails from Microsoft IP addresses without reverse DNS (possibly cloud servers). One is sending with addresses , starting on February 8. The other (same or different spammer?) uses and started just yester

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

> Even if you catch spam emails with SPF, I think you should be able to > distinguish between legitimate emails -- this is forwarding emails. SPF/DKIM/DMARC and spam are two entirely different things. Talking about spam and SPF is like talking about fish and fruit salad. I think John Levine now h

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

Hellow Cyril, On Wed, 2024-02-14 at 11:06 +0100, Cyril - ImprovMX via mailop wrote: > That's a good argument. I can do even better: > > Email is not designed for spam. Stop spamming. Problem solved. Yes, you are right. And I know what you're thinking. But please give me a chance to say this. E

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

That's a good argument. I can do even better: Email is not designed for spam. Stop spamming. Problem solved. ... Le mer. 14 févr. 2024 à 01:56, Benny Pedersen via mailop a écrit : > Byunghee HWANG via mailop skrev den 2024-02-14 01:00: > > > I really strongly agree with this opinion. That's w

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

Hellow Benny, > (...) please be open minded, you already is using opensource Thanks, usually i don't say 'No' to someone i like. In any case. I'm going to try your advice someday. Thanks again Benny! Sincerely, Byunghee -- ^고맙습니다 _布德天下_ 감사합니다_^))// signature.asc Description: This is a digi

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

Byunghee HWANG via mailop skrev den 2024-02-14 05:45: spf is not designed for forwarding, stop forwarding, problem solved Yes, you are right! good then :=) And if Google stops email service, i will also stop forwarding. https://wiki.debian.org/PostfixAndSASL see section SASL authenticat