> No, when delivery fails entirely, the deliver binary should give an > appropriate exit code, indicating that the MTA needs to try again later > or bounce the message. OK, I would have expected that.
> What do the Dovecot and MTA logs say? I will send you that information in private mail. > Furthermore, the output of dovecot -n would help us find and solve the > issue. And finally, your Sieve script may also be relevant. See above. Thanks for your help.
