Date: Thursday, January 05, 2023 17:06:40 -0700
From: Sbob <sbob(a)quadratum-braccas.com>
# echo 'Test 5' | mail -s "Test: $(date)"
# my_user(a)my_fastmail_domain.com
and now I see this in /var/log/maillog :
Jan 5 17:03:37 F37-Server postfix/pickup[916]: 1AA22104C394:
uid=0 from=<root>
Jan 5 17:03:37 F37-Server postfix/cleanup[1217]: 1AA22104C394:
message-id=<20230106000337.1AA22104C394(a)F37-Server.localdomain>
Jan 5 17:03:37 F37-Server postfix/qmgr[917]: 1AA22104C394:
from=<root(a)F37-Server.localdomain>, size=485, nrcpt=1 (queue active)
Jan 5 17:03:38 F37-Server postfix/smtp[1212]: 1AA22104C394:
to=<kevink(a)karbondb.com>,
relay=smtp.fastmail.com[66.111.4.139]:465, delay=0.92,
delays=0/0/0.61/0.31, dsn=5.7.1, status=bounced (host
smtp.fastmail.com[66.111.4.139] said: 551 5.7.1 Not authorised to
send from this header address (in reply to end of DATA command))
Jan 5 17:03:38 F37-Server postfix/cleanup[1216]: 06D58104C396:
message-id=<20230106000338.06D58104C396(a)F37-Server.localdomain>
Jan 5 17:03:38 F37-Server postfix/qmgr[917]: 06D58104C396:
from=<>, size=2646, nrcpt=1 (queue active)
Jan 5 17:03:38 F37-Server postfix/bounce[1215]: 1AA22104C394:
sender non-delivery notification: 06D58104C396
Jan 5 17:03:38 F37-Server postfix/qmgr[917]: 1AA22104C394: removed
Jan 5 17:03:38 F37-Server postfix/local[1219]: 06D58104C396:
to=<root(a)F37-Server.localdomain>, relay=local, delay=0.01,
delays=0/0/0/0, dsn=2.0.0, status=sent (delivered to mailbox)
Jan 5 17:03:38 F37-Server postfix/qmgr[917]: 06D58104C396: removed
Not sure what this means:
Not authorised to send from this header address
Maybe Fastmail simply does not allow this?
Is there another email service that I should use? something that is
(a) NOT google mail and (b) secure?
You haven't set the address you are sending from correctly. You are
trying to send from:
@F37-Server.localdomain
Janᅠ 5 17:03:37 F37-Server postfix/qmgr[917]: 1AA22104C394:
from=<root(a)F37-Server.localdomain>, size=485, nrcpt=1 (queue active)
which is unlikely to be the FQDN that you are authorized to use to
send mail via fastmail. You need to set your "From:" correctly for
this to work. There's a "sendmail" flag that will do that or you can
do it in your postfix config.