Hi there in the last days we're seeing that Microsoft is using "forms.mail.microsoft" as envelope SMTP sender-domain. As this domain does neither have A or MX it's considered unresolvable by our postfix MTA. Anyone else seeing that domain in their mailflow?
Any chance that MS will see that and fix it? :_) Cheers tobi _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
