[CentOS] Postfix (Roundcube client) sends mail, but not able to receive

Thu Mar 14 00:07:48 UTC 2013
Robert Moskowitz <rgm at htt-consult.com>

On 03/13/2013 07:42 PM, Austin Einter wrote:
> Dear Robert
> I have a bigger problem.
>
> sendmail was running previously. thats the reason I was able to send mail.
> Mow did chkconfig off for sendmail.
>
> Now postfix is running.
>
> Both send/recv not working now.
>
> While sending mail from roundcuble it says "connection to server failed".

Look at /var/log/maillog and see what it says there.

And I think roundcube does not directly send via port 25 (postfix) but 
sends through dovecot.  So I would look for dovecot errors.  Is it 
running?  Have you set it to be running at boot?