Reverse DNS does not match SMTP Banner

  • Thread starter cchcc
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cchcc

mxtoolbox returns this error; Warning -Reverse DNS does not match SMTP Banner.

Domain: coordinatingcenter.org, Environment: Winsrvr 2003 Ent R2/Exchange

2003.

Any help is much appreciated.
 
R

Rich Matheisen [MVP]

On Thu, 8 Oct 2009 13:21:02 -0700, cchcc

<cchcc> wrote:


> mxtoolbox returns this error; Warning -Reverse DNS does not match SMTP Banner.

> Domain: coordinatingcenter.org, Environment: Winsrvr 2003 Ent R2/Exchange
> 2003.


This isn't a necessity unless you encounter some zealot admin with a

SMTP server.

If you want to fix this, make sure the data in the HELO\EHLO commnad

matches the name on the PTR record for the IP address that the

receiving server sees when you send email.

-
Rich Matheisen

 
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cchcc

Thanks Rich, much appreciated. The Exchange local banner did not matter

since it was the firebox SMTP banner that needed editing. All is well.

"Rich Matheisen [MVP]" wrote:


> On Thu, 8 Oct 2009 13:21:02 -0700, cchcc
> <cchcc> wrote:
>
> >mxtoolbox returns this error; Warning -Reverse DNS does not match SMTP Banner.
> >Domain: coordinatingcenter.org, Environment: Winsrvr 2003 Ent R2/Exchange
> >2003.


> This isn't a necessity unless you encounter some zealot admin with a
> SMTP server.

> If you want to fix this, make sure the data in the HELO\EHLO commnad
> matches the name on the PTR record for the IP address that the
> receiving server sees when you send email.
> -> Rich Matheisen
>
>
 
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