SlammingRumJoseph
asked on
Exchange 2003, SBS, Intelligent Mail Filter #4.7.1 smtp; 541 4.7.1
Guys,
I am receiving the below NDR on some emails that i send.
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<servername.domainname.co. uk #4.7.1 smtp;451 4.7.1 Greylisting in action, please come back in 00:08:48>
We are running Exchange 2003 with Small Business Server (soon to be disposed of) and Intelligent Mail filter. At first i thought it was a DNS issue until i saw the section regarding Greylisting. This makes me think that it is an Intelligent Mail filter issue. Could you please point me in the right direction? This needs to me resolved as it is driving me to distraction!
Thanks in advance,
Joseph
I am receiving the below NDR on some emails that i send.
You do not have permission to send to this recipient. For assistance, contact your system administrator.
<servername.domainname.co.
We are running Exchange 2003 with Small Business Server (soon to be disposed of) and Intelligent Mail filter. At first i thought it was a DNS issue until i saw the section regarding Greylisting. This makes me think that it is an Intelligent Mail filter issue. Could you please point me in the right direction? This needs to me resolved as it is driving me to distraction!
Thanks in advance,
Joseph
IMF does not block outbound mail so your SBS 2003 box is not generating the message. IMF also doesn't perform greylisting so the problem is at the recipient's end.
Greylisting is where a mail server assumes that you are a spammer and drops the connection based on your IP address. The mail server maintains a list of IP addresses that have sent non-spam therefore new IP addresses are untrusted. The assumption is that normal mail servers will queue the mail and retry while spammers will ignore the error and try someone else.
You could ask the target postmaster to whitelist your mail server's IP address.
Greylisting is where a mail server assumes that you are a spammer and drops the connection based on your IP address. The mail server maintains a list of IP addresses that have sent non-spam therefore new IP addresses are untrusted. The assumption is that normal mail servers will queue the mail and retry while spammers will ignore the error and try someone else.
You could ask the target postmaster to whitelist your mail server's IP address.
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http://email.about.com/cs/spamgeneral/a/tmpfailing.htm
Regards
Peter