Am 21.05.22 um 23:30 schrieb dove...@ptld.com:
Dovecot accepts the mail from postfix via LMTP. Dovecot already found the valid
recipient and accepted the email.
You need to make postfix pass the extension as lowercase to Dovecot.
See https://wiki.dovecot.org/LDA/Postfix :
An example using address extensions (ie user+extens...@domain.com (don't
forget to define the proper recipient_delimiter in Postfix's main.cf))
to deliver to the folder 'extension' in your maildir (If you wish to
preserve the case of ${extension}, remove the 'hu' flags, ...
dovecot unix - n n - - pipe
flags=DRhu user=vmail:vmail
argv=/usr/local/libexec/dovecot/dovecot-lda -f ${sender} -d
${user}@${nexthop} -m ${extension}
