valid RCPT command must precede DATA


Well-Known Member
Jul 23, 2004
cPanel Access Level
Root Administrator
I get that message when trying to send any mail from server 1 to any domain on server 2 .
But, mail from server 1 gets delivered to any other address not on server 2. Now even stranger, any mail sent to server 2 from another server or netwok gets delivered fine.
Apart from the "valid RCPT command must precede DATA" the mail log shows:
2006-02-24 05:58:35 1FCGZc-0004Yx-Mo == [email protected] <[email protected]> R=lookuphost T=remote_smtp defer (-44): SMTP error from remote mail server after RCPT TO:<[email protected]>: host [83.245.xx.xx]: 451 Temporary local problem - please try later.
So basically, server 2 is not accepting mail from server 1
Any idea ??
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