Am Mo, den 14.06.2004 schrieb Colin Paul Adams um 11:11: > After installing (from scratch, apart from /home directory) FC2, I can > no longer receive mails from a particular address. I used to receive > mails from him when I had FC1 installed. > > The address concerned has an MX record - I can get a listing with dig > -t MX, but if I omit the -t MX record, then I get: > > Truncated, retrying in TCP mode. > > and then timed out - not servers could be found. You name resolution setup is broken. You need to fix it. > fetchmail/sendmail rejects his emails with: > > maillog.1:Jun 7 23:53:45 colina sendmail[29693]: i57MiHN5029693: ruleset=check_mail, arg1=<neal@xxxxxxxxxxxx>, > relay=localhost.localdomain [127.0.0.1], reject=451 4.1.8 Domain of sender address neal@xxxxxxxxxxxx does not resolve The relay is localhost? Ah, because you get the mail via fetchmail. > So my questions are: > > 1) Is there a fix for this? Yes, you must setup DNS proper. If using bind then check your bind configuration. If you do not use any own name server then check the /etc/hosts file, /etc/resolv.conf and /etc/nsswitch.conf to be proper. > and if not, > 2) Can I tell sendmail to always allow this particular address through? You could use FEATURE(`accept_unresolvable_domains')dnl. But only using that and not fixing your broken DNS setup would be "unwise" > Colin Paul Adams Alexander -- Alexander Dalloz | Enger, Germany | GPG key 1024D/ED695653 1999-07-13 Fedora GNU/Linux Core 2 (Tettnang) on Athlon CPU kernel 2.6.6-1.427 Serendipity 14:08:43 up 10:43, 9 users, 0.45, 0.76, 0.64
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