Hello, I have a two users, that have a personal mailbox and a shared mailbox. They have access to the same shared mailbox.
Today they notified me, that a mail send to the shared mailbox exists for the one user but not the other. The user also notified me, that some mails are not being delivered.
I haven't found anything in my log files and the postmaster has also no delivery failures. I relay my mails through another server I don't have access to though.
My /etc/aliases only consists of postmaster: root. The relay owners
said that I should change postfix' main.cf to double_bounce_sender = postmaster a while ago. I am also not sure if I am not getting any
delivery failure notifications since then, since I don't have a
postmaster account, but I thought this is not needed since I have the
above line in /etc/aliases.
I also tried forcing a resync of their shared and non-shared inboxes
with: doveadm force-resync -u user@emaildomain.com INBOX as well as
doveadm force-resync -u user@emaildomain.com Shared (as well as with
Shared\* - I don't know if that makes a difference tbh).
Here is the output of dovecot -n:
https://bin.disroot.org/?4eac9ea90a72ff08#A2dim9VGqHAjjKcggF4ScFWpbGytePZjtK...
I am kind of lost where to start from here, because any other person I asked told me their mail worked fine ^^.
I would highly appreciate some guidance :)
Thank you. Best, Lucienne