Le lun 22 aoû 2011 14:29:29 CEST, Anne Wilson a écrit: > ... > Aug 22 14:02:12 borg postfix/smtp[2071]: B4693A377C: to=<anne at xxx.org>, > relay=mailhost.zen.co.uk[212.23.3.98]:25, delay=0.43, > delays=0.09/0.02/0.15/0.18, dsn=5.0.0, status=bounced (host > mailhost.zen.co.uk[212.23.3.98] said: 550-Verification failed for > <anne at borg.xxx.lan> 550-Unrouteable address 550 Envelope Sender: Domain must > resolve in DNS! (in reply to RCPT TO command)) > ... I think you also need to rewrite your envelop address. I had the same problem years ago, so the way to solve it has probably changed, hopefully not too much : - edit (create if necessary) /etc/postfix/sender_cannonical anne at borg.xxx.lan some.address at some.real.server.for.the.bounces - edit main.cf : sender_canonical_maps = hash:/etc/postfix/sender_cannonical - rehash /etc/postfix/sender_cannonical and reload postfix Good luck, -- Philippe Naudin