Hi, I was trying to send email to a sourceforge mailing list through spamgourmet, but I got the following error message. How do I fix this? "xxxxxx@spamgourmet.com" is my spamgourmet email address:
----- The following addresses had permanent fatal errors -----
<alsa-user@lists.sourceforge.net>
(reason: 550-Postmaster verification failed while checking <xxxxxx@spamgourmet.com>)
----- Transcript of session follows -----
... while talking to mail.sourceforge.net.:
>>> DATA
<<< 550-Postmaster verification failed while checking <xxxxxx@spamgourmet.com>
<<< 550-Called: 216.75.35.134
<<< 550-Sent: RCPT TO:<postmaster@spamgourmet.com>
<<< 550-Response: 554 5.7.1 ERRINV: rejected - no such user or invalid syntax
<<< 550-Several RFCs state that you are required to have a postmaster
<<< 550-mailbox for each mail domain. This host does not accept mail
<<< 550-from domains whose servers reject the postmaster address.
<<< 550 Sender verify failed
550 5.1.1 <alsa-user@lists.sourceforge.net>... User unknown
<<< 503 valid RCPT command must precede DATA