Add a PTR for your firewall's external IP. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of mail-lists Sent: Tuesday, March 01, 2005 10:41 AM To: [email protected] Subject: [IMail Forum] Blocking call cancelled - but have PTR
Hi All, I'm having an issue with mail being delivered multiple times, but only to certain domains. Our mail server will connect, send the message successfully, then receive an error rl-recv: Blocking call cancelled. IPSwitch says that it's because our mail server does not have a PTR record for the mail server. But we do have one. The only issue that I can see this being, is that our mail server is inside our network with a private address. Therefore, when mail gets sent out, the outgoing IP that other mail servers see if that of our firewall. So when the receiving mail server does a reverse lookup it gets a different IP than that of the A record for mail.cottonwoodfinancial.com. We've got an incoming NAT to direct the smtp traffic to the mail server. My question is why do only certain mail servers reject our mail, and why do they accept it for their users before rejecting it only to have us re queue and send again, up to 20 times or until I delete it from my queue? Is there anything I can do to fix this with the mail server still being inside the network with a private address? 20050301 002754 127.0.0.1 SMTP (2812) d:\Imail\spool\Q4862167001142795.SMD 20050301 002754 127.0.0.1 SMTP (2812) processing d:\Imail\spool\Q4862167001142795.SMD 20050301 002754 127.0.0.1 SMTP (2812) Trying cdw.com (0) 20050301 002754 127.0.0.1 SMTP (2812) Connect cdw.com [12.32.91.169:25] (1) 20050301 002754 127.0.0.1 SMTP (2812) 220 apache.dmz.cdw.com ESMTP NetIQ MailMarshal (v6.0.3.8) Ready 20050301 002754 127.0.0.1 SMTP (2812) >EHLO cottonwoodfinancial.com 20050301 002755 127.0.0.1 SMTP (2812) 250-apache.dmz.cdw.com Hello cottonwoodfinancial.com (65.168.188.242) 20050301 002755 127.0.0.1 SMTP (2812) 250-AUTH LOGIN 20050301 002755 127.0.0.1 SMTP (2812) 250-AUTH=LOGIN 20050301 002755 127.0.0.1 SMTP (2812) 250 SIZE 20050301 002755 127.0.0.1 SMTP (2812) >MAIL FROM:<[EMAIL PROTECTED]> 20050301 002755 127.0.0.1 SMTP (2812) 250 sender ok <[EMAIL PROTECTED]> 20050301 002755 127.0.0.1 SMTP (2812) >RCPT To:<[EMAIL PROTECTED]> 20050301 002755 127.0.0.1 SMTP (2812) 250 Recipient ok <[EMAIL PROTECTED]> 20050301 002755 127.0.0.1 SMTP (2812) >DATA 20050301 002755 127.0.0.1 SMTP (2812) 354 send the mail data, end with . 20050301 003947 127.0.0.1 SMTP (2812) >. 20050301 004347 127.0.0.1 SMTP (2812) rl-recv: Blocking call cancelled 20050301 004347 127.0.0.1 SMTP (2812) 20050301 004347 127.0.0.1 SMTP (2812) SMTP_DELIV_FAILED 20050301 004347 127.0.0.1 SMTP (2812) >QUIT 20050301 004747 127.0.0.1 SMTP (2812) rl-recv: Blocking call cancelled 20050301 004747 127.0.0.1 SMTP (2812) 20050301 004747 127.0.0.1 SMTP (2812) requeuing d:\Imail\spool\Q4862167001142795.SMD R0 T18 20050301 004747 127.0.0.1 SMTP (2812) finished d:\Imail\spool\Q4862167001142795.SMD status=3 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/ 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/
