Mailing List Message #104890
From: Nicolas Hatier <>
Subject: Re: Reverse DNS mismatch
Date: Sun, 06 Apr 2014 10:52:30 -0400
To: CommuniGate Pro Discussions <>

The 15 seconds wait can come from CGP settings.
Settings / Mail / SMTP / Receiving / Delay Prompt for...


On 2014-04-04 12:34, bob wrote:
Hi Nicolas thank you! More info inline.

On 4/4/2014 12:26 PM, Nicolas Hatier wrote:

"#1. 2 MX records pointing to different names that resolve to the same IP is odd and pointless. "

> dig mx
;; ANSWER SECTION:     21475   IN      MX      10     21475   IN      MX      10

> dig A 43200   IN      A

> dig A 43200   IN      A

You could remove both MX records completely, as resolves to too. You can also remove the A record for mx1 and mx2

OK I just deleted those records.

"#2 Using DynDNS isn't necessarily unwise ..."
OK if the IP is really static, though you could use a DNS provider that sounds less dynamic.

"#3. Putting any machine engaging in any form of SMTP behind a device that performs malicious attacks on basic SMTP functionality [...] is always a bad idea"

> telnet 25
Connected to
220 ESMTP CommuniGate Pro 5.3.13

For me it now looks OK, you probably removed the ESMTP line from the PIX.

Yes, I did remove the inspect statement. :) When I connect as you did, I still get that 15 second wait.

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