Irregular Mail Sending Problem
I have a dedicated server that has been running aok for 9 months or so. Some emails are sent through a php script on one of the domains - and some (approximately 50%) of these emails fail and are held in the mail queue. Many of these failed emails (but not all) are intended for my own email account, and the message I receive when I try to deliver the message in the queue is :
Connecting to myemaildomain.com [000.32.66.154]:25 ... connected
SMTP<< 220-server.myemaildomain.com ESMTP Exim 4.43 #1 Wed, 22 Dec 2004 05:12:56 -0600
220-We do not authorize the use of this system to transport unsolicited,
220 and/or bulk e-mail.
SMTP>> EHLO server.mydedserver.net
SMTP<< 250-server.myemaildomain.com Hello server.mydedserver.net [000.125.236.18]
250-SIZE 52428800
250-PIPELINING
250-AUTH PLAIN LOGIN
250-STARTTLS
250 HELP
SMTP>> STARTTLS
SMTP<< 220 TLS go ahead
SMTP>> EHLO server.mydedserver.net
SMTP<< 250-server.myemaildomain.com Hello server.mydedserver.net [000.125.236.18]
250-SIZE 52428800
250-PIPELINING
250-AUTH PLAIN LOGIN
250 HELP
SMTP>> MAIL FROM:<nobody@server.mydedserver.net> SIZE=2304
SMTP>> RCPT TO:<me@myemaildomain.com>
SMTP>> DATA
SMTP<< 250 OK
SMTP<< 451 Temporary local problem - please try later
SMTP<< 503 valid RCPT command must precede DATA
SMTP>> QUIT
Everything seems to be going so well until the '451 Temporary local problem' ... The server load is fine, no disk usage is over 44%, the resolv.conf file seems ok and all web/browser functions work 100%.
This problem just appeared about 2 weeks ago, but doesn't affect everyone. Some people are receiving all of their messages ok - and others, like me, receive none.
Any pointers you can give me would be greatly appreciated.
Thanks again,
Andy
ps. I've changed the domain/server names and ip addresses in this post to protect the innocent !
