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Problem with mails

 
Kaps_2
Regular Advisor

Problem with mails

Hello All,

I have configured linux sendmail so that it can send mails from the server to the exchange accounts. For this I have edited sendmail.cf file and added the smtp server address in the like :
DSxyz.com

After that I restarted the sendmail server.After this changes i was able to send mails from the server however when I try to reply to these mails they are not getting delivered. Could you please give me any idea what can be the problem.

mailman@dcublrboacms002.blreng.scieng.local on 8/11/2008 2:53 PM
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
< scidubsmtp03.stercomm.com #5.4.7 smtp; 5.4.7 - Delivery expired (message too old) 'DNS Soft Error looking up dcublrboacms002.blreng.scieng.local (MX) while asking iwblrcorsrv004.blreng.scieng.local. Error was: unable to reach nameserver on any valid IP' (delivery attempts: 0)>

From the above msg it looks like to be name resolution error.

Thanks,
Kaps
6 REPLIES
Ivan Ferreira
Honored Contributor

Re: Problem with mails

Yes, it seems that you don't have an MX record for you dcublrboacms002.blreng.scieng.local domain.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Kaps_2
Regular Advisor

Re: Problem with mails

yeah i dont have the mx record for dcublrboacms002.blreng.scieng.local however is there any other way to do so? like masquarde
Steven E. Protter
Exalted Contributor

Re: Problem with mails

Shalom,

no.

no mail exchange (MX) record, sendmail doesn't know where to send the mail, it does nothing and errors out.

The DNS for this domain must have a MX record added.

DNS 101.

the basics.

SEP
Steven E Protter
Owner of ISN Corporation
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Ivan Ferreira
Honored Contributor

Re: Problem with mails

There are "mailer tables" that can be used to bypass DNS MX. Bu I don't know if you can do it whith exchange.
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Ivan Ferreira
Honored Contributor

Re: Problem with mails

There are also known as transport tables...
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?
Ivan Ferreira
Honored Contributor

Re: Problem with mails

Under exchange, they are called "SMTP connector", here is a link about how to configure them:

http://www.amset.info/exchange/smtp-connector.asp
Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?