[mdlug] Can't open SMTP stream.

[Mark Thuemmel]

jack freeman wrote:
> I am working on getting my mail server back up. I can receive mail
> through my yahoo account but I am unable to send. When i try to send it
> get this error "Server replied: 111 Can't open SMTP stream.". I haven't
> had this problem before. When I do a MX check i get this "Reverse DNS
> FAILED! This is a problem." I dont know how to gix that one eather.
> 
> I am using squirrelmail with postfix.
> 
Have you tried relayhost = smtp.yourisp.net in your /etc/postfix/main.cf
to send your mail through your ISP's mail server instead of direct?  I'm
guessing you don't control your reverse dns and some mail servers make
it tough