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HI, can you explain this??

If you are using PowerMTA 4.5r6 or later then you can also use mx-rollup-list feature to consolidate Microsoft related domains into one queue. This will improve resource utilization. For example, Microsoft EU and APAC :

# Microsoft
mx eur.olc.protection.outlook.com outlook-eur.rollup
mx apc.olc.protection.outlook.com outlook-apc.rollup

whereis hotmail.com

Thanks!!

We only use http://link, we don't use mailto:  for all domains (hotmail, gmail, yahoo, and other domains)

I'ts rigth?

In this BLOG post we discuss the implementation of a List-Unsubscribe header and share a use-case. For PMTA users we present an interesting add-on to streamline MAILTO unsubscribe requests.
https://www.postmastery.com/list-unsubscribe-header-critical-for-sustained-email-delivery/

https://www.spamhaus.org/faq/section/Glossary#233

Thanks so much for posting this and sharing it with our Forum.  This is valuable information for all of our PowerMTA customers.

At Postmastery, we work for various ESPs and brands to optimise email delivery. Recently, one of our clients faced a mysterious DKIM failure when sending mail to Outlook.com domains.
Please find below the full case description.
https://www.postmastery.com/proper-mime-prevents-dkim-failures-in-outlook/

Our main finding: Use proper encoding and always test your output at a header level with various large ISPs like Outlook, Gmail and Yahoo. We advise using Quoted-Printable transfer encoding for best results.

hi,
only for my interst (we are not blocked) … how do i identify spamhaus blocks?
i've never heard before the word "snowshoe"

greetings

Hello Keith,

Thanks for the comment.

Yes, it looks like they are using it indeed. But how come its not showing up in my headers? 

Thanks,

Misit

Hello Misit,

According to Microsoft documentation, they do indeed use that header. Here is what I was able to dig up on this end.

"
https://docs.microsoft.com/en-us/exchange/antispam-and-antimalware/antispam-protection/antispam-stamps?view=exchserver-2019
"

-Keith

Hello Everyone,

Just a quick question, I have noticed the header field Outlook.com adds to there header, doesn't seems to be there anymore.

"X-MS-Exchange-Organization-SCL" Does anyone noticed this ? if so, what other options they use to mark a SPAM email?

Thanks In Advance

Misit