One of the first things I do after the installation of a system is a yum install postfix followed by a yum remove sendmail. No need to deal with alternatives if you don't intend to deal with sendmail anyway. Regards. Dennis On 08/22/2011 08:45 PM, Alexander Dalloz wrote: > It is obvious you run both Sendmail and Postfix, ending in trouble. The > sendmail binary (which is a symlink) still points to Sendmail, though you > seem to have configured Postfix as you system's MTA. > >> I have been careful to re-map transports and restart postfix after any >> changes to the config files. The following from maillog may shed some >> light as to where the problem lies: >> >> Aug 22 14:02:11 borg sendmail[1711]: p7MD29Lf001711: from=anne, size=6877, >> class=0, nrcpts=1, msgid=<201108221302.p7MD29Lf001711 at borg.xxx.lan>, >> relay=root at localhost >> Aug 22 14:02:11 borg postfix/smtpd[2067]: connect from >> borg.xxx.net[127.0.0.1] >> Aug 22 14:02:11 borg postfix/smtpd[2067]: B4693A377C: >> client=borg.xxx.net[127.0.0.1] >> Aug 22 14:02:11 borg postfix/cleanup[2070]: B4693A377C: message- >> id=<201108221302.p7MD29Lf001711 at borg.xxx.lan> >> Aug 22 14:02:11 borg postfix/qmgr[1499]: B4693A377C: >> from=<anne at borg.xxx.lan>, >> size=7487, nrcpt=1 (queue active) >> Aug 22 14:02:11 borg sendmail[1711]: p7MD29Lf001711: to=anne at xxx.org, >> ctladdr=anne (500/100), delay=00:00:02, xdelay=00:00:00, mailer=relay, >> pri=36877, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (Ok: queued >> as >> B4693A377C) >> Aug 22 14:02:11 borg postfix/smtpd[2067]: disconnect from >> borg.xxx.net[127.0.0.1] >> 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)) >> Aug 22 14:02:12 borg postfix/cleanup[2070]: 2EB94A371B: message- >> id=<20110822130212.2EB94A371B at borg> >> Aug 22 14:02:12 borg postfix/bounce[2072]: B4693A377C: sender non-delivery >> notification: 2EB94A371B >> Aug 22 14:02:12 borg postfix/qmgr[1499]: 2EB94A371B: from=<>, size=9481, >> nrcpt=1 (queue active) >> Aug 22 14:02:12 borg postfix/qmgr[1499]: B4693A377C: removed >> Aug 22 14:02:12 borg postfix/smtp[2071]: 2EB94A371B: >> to=<anne at borg.xxx.lan>, >> relay=mailhost.zen.co.uk[212.23.3.98]:25, delay=0.75, >> delays=0.04/0/0.16/0.54, >> dsn=2.0.0, status=sent (250 OK id=1QvU8e-00085m-9o) >> Aug 22 14:02:12 borg postfix/qmgr[1499]: 2EB94A371B: removed > >> Anne > > alternatives --config mta > > Switch to Postfix. Validate by > > alternatives --display mta > > then remove Sendmail if you do not use it. > > Alexander > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos