Does it produce a bounce? We see cases where eg Recipient verification on MS365 customers simply does not work (apparently depending on which cluster they are hosted). Instead of rejecting with some 5xx it will bounce later.
— Matthias Von meinem iPhone gesendet > Am 20.10.2020 um 12:45 schrieb Daniele Rossi via mailop <[email protected]>: > > Hi, > > we try to send to Microsoft Account and we receive this message: > > Queued mail for delivery -> 250 2.1.5 > The problem is that the mail does not arrive either in spam or in the inbox. > This happens for most of our ip's. > > Can anyone explain this abnormal behavior to me? > > > > > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop
_______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
