Viktor Dukhovni <postfix-us...@dukhovni.org> writes: >> On Feb 1, 2018, at 11:31 PM, Olivier <olivier.nic...@cs.ait.ac.th> wrote: >> >> I apologize if tht has already been posted, but I could not find any >> reference. >> >> I recently upgraded my postfix server from 2.11.6 to 3.2.3_1. >> >> Postfix server runs on a FreeBSD OS. The upgrade was seamless for all >> the users except the users connecting from a Mac: >> >> - a Mac that never used the Mail app could connect immediately to >> posftix SMTP, using any mail account >> >> - a Mac that previouslu sued Mail app could connect to account that we >> never used before, but could not connect to pre-existing accounts >> >> - furthermore, if you create a new Mac user, he can use any email >> account. >> >> In the second case above, if I remove the previous email account on the >> Mac and recreate it, then it works. >> >> Is that a know problem? Is there a fix? > > Users read their mail via IMAP, and Postfix is not an IMAP server. > Perhaps your certificate changed and was pinned to the IMAP account > on the client. Or some SASL issue, or other IMAP settings. Look > in the IMAP logs.
I apologize for being abiguous. It is a problem of authentication to SMTP (they have no problem with IMAP). And the certificate has not changed (same machine, same name, same file); and cyrus saslauthd has not changed either. Best regards, Olivier --
