A mail was greylisted. No big deal, let's flush the queue and grep the log:
# postfix flush && tail -f /var/log/mail.log|grep timmer Aug 27 08:00:09 mail-ausfall postfix/smtp[3983]: 3D7143DB09: host smtp.kontent.com[81.88.40.24] said: 450 4.7.1 <[EMAIL PROTECTED]>: Recipient address rejected: You have been greylisted, please try later (187 secs left) (in reply to RCPT TO command) Aug 27 08:00:09 mail-ausfall postfix/smtp[3983]: 3D7143DB09: host smtp.kontent.com[81.88.40.23] said: 450 4.7.1 <[EMAIL PROTECTED]>: Recipient address rejected: You have been greylisted, please try later (183 secs left) (in reply to RCPT TO command) Aug 27 08:00:09 mail-ausfall postfix/smtp[3983]: 3D7143DB09: host smtp.kontent.com[81.88.40.26] said: 450 4.7.1 <[EMAIL PROTECTED]>: Recipient address rejected: You have been greylisted, please try later (183 secs left) (in reply to RCPT TO command) Aug 27 08:00:10 mail-ausfall postfix/smtp[3983]: 3D7143DB09: to=<[EMAIL PROTECTED]>, relay=smtp.kontent.com[81.88.40.25]:25, delay=118, delays=109/0/8.2/0.14, dsn=4.7.1, status=deferred (host smtp.kontent.com[81.88.40.25] said: 450 4.7.1 <[EMAIL PROTECTED]>: Recipient address rejected: You have been greylisted, please try later (183 secs left) (in reply to RCPT TO command)) Why does ONE "postfix flush" cause THREE delivery attemps? It's just one queuefile (as you can see) queue_run_delay = 180s maximal_backoff_time = 4000s minimal_backoff_time = 180s maximal_queue_lifetime = 5d -- Ralf Hildebrandt ([EMAIL PROTECTED]) [EMAIL PROTECTED] Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de I'm looking for a job SMTP is not Calvin Ball. If you make up your own rules about forwarding please do not be surprised that other people ignore them.