Problem with DSN (Delivery Status Notification) after update exim conf

[ZuluGula]

Hello.
Afert update exim.conf I have problems with DSN on Roundcube. If I confirm delivery, I get message SMTP Error 550, "Account [email protected] can not send emails from ." On email client like Thunderbird DSN works correct.

 

[zEitEr]

Hello,

It is possibly related to https://docs.directadmin.com/changelog/version-1.680.html#sender-address-spoofing-protection

But I would expect Delivery Status Notifications to pass through fine. DirectAdmin developers might need to check it for you. Probably there's a bug in the implementation of the sender address spoofing protection in Exim.

 

[ZuluGula]

You're right. When I change the AUTH BLOCK SENDER SPOOFING variable to "no," the DSN works without a problem.
Thanks for the reply, Alex.