CFMail was working fine on coldfusion 9. Then suddenly it stopped sending the email. The log says email sent sucessfully but no one received it.
It seems it is a know issue as discussed here - adobe forum
Anyone has got any idea then please tell me. client is going mad here.
I got it working. My client changed the from email from the setting page which we provide and they entered an invalid email address which was then failing at the SMTP server end with "invalid return path" as error.
After adding a valid email id it worked.