[Linux] Postfix help

[Mike Harbison]

use the IP address instead of the domain name.

Give it a try.
Mike.
On Tue, 2007-05-15 at 12:20 -0400, David Williams wrote:
> Hi all,
> 
>  
> 
> I need help with postfix.  For some reason my outgoing SMTP has
> stopped working.  My account was recently transferred from Adelphia to
> Comcast, along with that came a new SMTP server for Comcast.
> 
>  
> 
> I’ve updated my main.cf file to the following:
> 
>  
> 
> relayhost = smtp.comcast.net
> 
>  
> 
> But, when ever I try and send an email I get the following in the log
> file:
> 
>  
> 
> May 15 11:58:24 dtwconsulting postfix/qmgr[5606]: 07F8845880:
> to=<dwilliams@XXXXXXXXXXX.com>, relay=none, delay=61238,
> delays=61218/20/0/0, dsn=4.4.3, status=deferred (delivery temporarily
> suspended: Host or domain name not found. Name service error for
> name=smtp.comcast.net type=MX: Host not found, try again)
> 
>  
> 
> Can anyone provide any help on this ?
> 
>  
> 
> As some additional info, I setup Outlook to directly use the Comcast
> SMTP server and it went through just fine.  So, why is my smtp server,
> which points to the Comcast SMTP server not working ?  Does Comcast
> have some additional security in place ?   Seems weird to me.  By the
> way, my postfix server is on my local (Comcast) network.
> 
>  
> 
> Any help would be much appreciated.
> 
>  
> 
>  
> 
> Regards,
> 
> ____________________________________________
> 
> David Williams
> 
>  
> 
>