Leslie> ??? I recently upgraded one of my servers to Debian Buster.? Leslie> I have been using sSMTP as my MTA, but unfortunately it is no Leslie> longer maintained.? I installed msmtp, instead, but now my Leslie> mesages are no longer going out from mdadm.? I can run the Leslie> command: This is a problem with your mail setup, not with mdadm. I suspect you need to configure msmtp to use TLS and/or to submit the email to port 587 on att.net, where you do a full authenticated login. Look at the examples here: https://wiki.alpinelinux.org/wiki/Relay_email_to_gmail_(msmtp,_mailx,_sendmail https://wiki.debian.org/msmtp And follow the debuging info these guides give. Once you get email working properly, mdadm will send emails. Leslie> echo "Subject: Test: | sendmail lesrhorer@xxxxxxx Leslie> and it works.? If I try: Leslie> mdadm --monitor --scan --test -1 Leslie> I get: Leslie> sendmail: the server did not accept the mail Leslie> sendmail: server message: 550 Request failed; Mailbox unavailable Leslie> sendmail: could not send mail (account default from /etc/msmtprc) Leslie> and from /var/log/mail.err: Leslie> Jan 12 03:43:40 RAID-Server msmtp: host=outbound.att.net tls=on auth=on Leslie> user=lesrhorer@xxxxxxx from=lesrhorer@xxxxxxx Leslie> recipients=lesrhorer@xxxxxxx smtpstatus=550 smtpmsg='550 Request failed; Leslie> Mailbox unavailable' errormsg='the server did not accept the mail' Leslie> exitcode=EX_UNAVAILABLE
