Ok quick question i run a redhat webserver, and i have my webmail setup with my smtp and pop servers running. i also have a domain. my problem is that i can send mail out to a test email address "yahoo" but when i send it back to my webserver it says that it cant find a mx exchange server or a ip address. ok in my dns settings for my domain i have "@ - ip and mail - ip" added under MX (Mail Exchangers). do i need to set up anything under CNAMES or A Host for this to work right? also i have a commercial account with my isp so all the mail ports are open. what am i doing wrong?
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Email Server & Domain
- Thread starter Trunkx
- Start date
- Thread starter
- #3
Well, you have an MX record ..
;; QUESTION SECTION:
;echobox.org. IN MX
;; ANSWER SECTION:
echobox.org. 3600 IN MX 0 mail.echobox.org.
;; AUTHORITY SECTION:
echobox.org. 3600 IN NS PARK9.SECURESERVER.NET.
echobox.org. 3600 IN NS PARK10.SECURESERVER.NET
.. but mail.echobox.org has a CNAME record, not an A record. While this may work many servers might insist that there is an A record to resolve this and not a CNAME.
;; QUESTION SECTION:
;mail.echobox.org. IN A
;; ANSWER SECTION:
mail.echobox.org. 3600 IN CNAME echobox.org.
echobox.org. 3600 IN A 68.228.7.140
I'm sure that there are some RFC's somewhere that state this but it's late and I can't find them ;-) However, I would suggest that you create an A record for mail.echobox.org.
The mail server does seem to be up ..
$ telnet mail.echobox.org 25
Trying 68.228.7.140...
Connected to mail.echobox.org.
Escape character is '^]'.
220 webserver.echobox.org ESMTP Postfix
helo dude
250 webserver.echobox.org
mail from: < me >
250 Ok
rcpt to: you@echobox.org
250 Ok
data
354 End data with <CR><LF>.<CR><LF>
Test
.
250 Ok: queued as C88EAD8E50
quit
221 Bye
Connection closed by foreign host.
Looks okay.
Chris.
**********************
Chris A.C, CCNA, CCSA
**********************
;; QUESTION SECTION:
;echobox.org. IN MX
;; ANSWER SECTION:
echobox.org. 3600 IN MX 0 mail.echobox.org.
;; AUTHORITY SECTION:
echobox.org. 3600 IN NS PARK9.SECURESERVER.NET.
echobox.org. 3600 IN NS PARK10.SECURESERVER.NET
.. but mail.echobox.org has a CNAME record, not an A record. While this may work many servers might insist that there is an A record to resolve this and not a CNAME.
;; QUESTION SECTION:
;mail.echobox.org. IN A
;; ANSWER SECTION:
mail.echobox.org. 3600 IN CNAME echobox.org.
echobox.org. 3600 IN A 68.228.7.140
I'm sure that there are some RFC's somewhere that state this but it's late and I can't find them ;-) However, I would suggest that you create an A record for mail.echobox.org.
The mail server does seem to be up ..
$ telnet mail.echobox.org 25
Trying 68.228.7.140...
Connected to mail.echobox.org.
Escape character is '^]'.
220 webserver.echobox.org ESMTP Postfix
helo dude
250 webserver.echobox.org
mail from: < me >
250 Ok
rcpt to: you@echobox.org
250 Ok
data
354 End data with <CR><LF>.<CR><LF>
Test
.
250 Ok: queued as C88EAD8E50
quit
221 Bye
Connection closed by foreign host.
Looks okay.
Chris.
**********************
Chris A.C, CCNA, CCSA
**********************
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