On 2023-12-18 14:20, Benny Pedersen via mailop wrote:
Michael Peddemors via mailop skrev den 2023-12-18 22:45:
Strange rewriting mechanism, but this kind of volume should be
restricted from the o365 side, no? What about the usage of
non-existant FQDN name in the MAIL FROM?
what mta ?
what port is used ?
i use postfix with postscreen on port 25, in port 465, 587 is dnsbl from
spamrats, before sasl auth
Maybe my original posting wasn't clear..
You would see these in your inbound logs, coming from o365 via port
25/TLS...
Just real strange widespread occurrence that you would not expect to
make it through o365 rules.
--
"Catch the Magic of Linux..."
------------------------------------------------------------------------
Michael Peddemors, President/CEO LinuxMagic Inc.
Visit us at http://www.linuxmagic.com @linuxmagic
A Wizard IT Company - For More Info http://www.wizard.ca
"LinuxMagic" a Registered TradeMark of Wizard Tower TechnoServices Ltd.
------------------------------------------------------------------------
604-682-0300 Beautiful British Columbia, Canada
This email and any electronic data contained are confidential and intended
solely for the use of the individual or entity to which they are addressed.
Please note that any views or opinions presented in this email are solely
those of the author and are not intended to represent those of the company.
_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop
