Public bug reported: Cyrus is unable to receive some 8bit mime messages from MS Outlook 2016 and/or modern Apple / other mobile clients.
They are rejected with this error message (it would REALLY be nice if an extra patch also added /what/ header and octet offset the issue was from). LMTP error after end of data: 554 5.6.0 Message contains invalid header This page seems to indicate that the issue might have a resolution in the 3.0.x stable release of cyrus-imapd: https://www.cyrusimap.org/imap/reference/faqs/interop-8bit.html System information not included above: Description: Ubuntu 18.04.1 LTS Release: 18.04 cyrus-common: Installed: 2.5.10-3ubuntu1 Candidate: 2.5.10-3ubuntu1 Version table: *** 2.5.10-3ubuntu1 500 I have tried disabling 8bit mime support in exim4 as well, but it seems to be insufficient to resolve this issue. ** Affects: cyrus-imapd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1815144 Title: LMTP error after end of data: 554 5.6.0 Message contains invalid header To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cyrus-imapd/+bug/1815144/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
