Sendmail error

What could these mean?

/usr/sbin/sendmail: unexpected response 501 to RCPT TO command
/usr/sbin/sendmail: unexpected response 503 to DATA command

That's from my cron.php error message (or at least I think these mean errors?).

Quote · 8 Jun 2013

503 Usually means you specified an incorrect password. However the 501 is an helo error which makes me believe the script has no access to required information or you have a corrupt file.


I hope this rings a bell for you


Good luck!



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Quote · 8 Jun 2013