[CentOS] Sendmail problem

[Thomas E Dukes]

> -----Original Message-----
> From: centos-bounces at centos.org 
> [mailto:centos-bounces at centos.org] On Behalf Of Alexander Dalloz
> Sent: Tuesday, April 11, 2006 8:41 AM
> To: CentOS mailing list
> Subject: Re: [CentOS] Sendmail problem
> 
> Am Di, den 11.04.2006 schrieb Thomas E Dukes um 14:17:
> 
> > I am having a problem with returned mail.  I don't have something 
> > configured correctly.
> > 
> > I have 6 virtual hosts on one machine and mail sent from 
> these host is 
> > being returned.  This is the transcript:
> > 
> > The original message was received at Tue, 11 Apr 2006 
> 07:30:19 -0400 
> > from localhost.localdomain [127.0.0.1]
> > 
> >    ----- The following addresses had permanent fatal errors ----- 
> > <f5loar at charter.net>
> >     (reason: 553 #5.1.8 Domain of sender address 
> > <apache at localhost.localdomain> does not resolve)
> > 
> >    ----- Transcript of session follows ----- ... while talking to
> > mail.charter.net.:
> > >>> MAIL From:<apache at localhost.localdomain> SIZE=1618
> > <<< 553 #5.1.8 Domain of sender address 
> <apache at localhost.localdomain> 
> > does not resolve
> > 501 5.6.0 Data format error
> > 
> > I think this has something to with outgoing address 
> mappings but not 
> > sure how to fix it.  All virtual hosts are included in the 
> local domains file.
> 
> localhost.localdomain is no valid public FQDN. Either give 
> your host a valid FQDN (which is recommended for a networked 
> host anyway) or use masquerarding / generics feature.
> 
> Alexander

Hello Alexander,

As far as I know, I have my FQDN set.  It may not be done so correctly in
sendmail.

Here's a portion of my sendmail.mc file:

LOCAL_DOMAIN(`localhost.localdomain')dnl  <---- do I need to change this to
my FDQN?
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
dnl FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as
well
dnl #
dnl FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl  <------  How about this?
dnl # MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl # MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(`procmail')

What masquerade feature do I need to setup so that mail sent from domain1,
domain2, domain3, etc., is sent from the respective domains?

Any help would be really appreciated!!!

TIA