Hi, One of our clients have installed an ani-spam software which is blocking our legitimate email. Their IT guy has sent the below information suggesting why it might be refusing connections from our server.
INFO: R[5] Client Name DNS Lookup - ns0.myserver.com [217.xxx.xx.xxx] INFO: R[5] EHLO - mail01.myserver.com WARNING: R[5] Connection rejected - Deny Connection for ns0.myserver.com [217.xxx.xx.xxx] (PTR record does not match HELO/EHLO string) WARNING: R[5] Incomplete SMTP session from host: ns0.myserver.com [217.xxx.xx.xxx] INFO: R[5] Closing Connections. INFO: R[5] Connection closed. They tell me it's because the EHLO request doesn't match the DNS Name Lookup......... they suggest you need to set the EHLO response to be ns0.myserver.com too. Please can anyone help me find out how do I change the EHLO response to match the client dns lookup We have setup a ptr record to point to both domain names Also, would it be correct (as per RFC/SMTP standards) for our email to be blocked because EHLO response does not match DNS lookup or is it just a very strict rule for blocking spam. All help much appreciated Regards, Sandeep To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
