How to fix 550-Verification failed

[trimelater]

I am having problems sending my email to Internet America customer such as melm@airmail.net. I can send email to anyone else in the world but Internet America (IA). I talked to IA and they tell me it occurs on ISP who is SBC. Could anyone tell me who is at fault so I can have this email issue resolve?

Trimelater


The original message was received at Mon, 17 May 2004 15:54:01 -0400 from adsl-65-71-248-41.dsl.rcsntx.swbell.net [65.71.248.41]

----- The following addresses had permanent fatal errors ----- <melm@airmail.net>
(reason: 550-Verification failed for <tri@dieninc.com>)

----- Transcript of session follows -----
... while talking to mx1.airmail.net.:
>>> DATA
<<< 550-Verification failed for <tri@dieninc.com>
<<< 550-No such user tri@dieninc.com, please check your spelling <<< 550 Sender verify failed 550 5.1.1 <melm@arcproductsinc.com>... User unknown <<< 503 valid RCPT command must precede DATA

 

[Prydonian]

Sounds like your MX record is pointing back to your ISP instead of to your domain. Go to the site

http://www.dnsstuff.com

and enter your FQDN in the DNS Lookup box. Select MX and click on Lookup.

Your MX record should point back to you and not to the ISP. More and more domains reject mail when the return address does not match the MX record. This goes a long way with cutting down on SPAM.

Once you find out what's going on, a call to your ISP to have them change the MX record should fix things...

Mike