Re: WebServer 2003 domain relay settings

Thanks Sandy,

The IP address is allowed to make outbound connections via port 25 through
the firewalls. I can also ping googlemail.com which returns ip address of
66.249.91.83. so my isp DNS lookups are working.

telnet connection fails up to 'googlemail.com' port '25' / '645'.
But telnet connections up to 'smtp.gmail.com' port '645' works fine. (so DNS
is looking up correctly)
Which others should I try?

searching on www.dnsstuff.com my ip address is not blocked on any lists.
(Although the host I have registered my domain with has been.).

So how do you alter the MX records in windows server 2003 web edition?
Can not find any setting on the Web Edition?

Thanks


"Sanford Whiteman" wrote:

Previously running with Win Server 2000 IIS SMTP as a domain
controler default settings and all working great. Have now
decommissioned the W2k Server box and set-up the WebServer 2003 in
its place. The IP Address is on the same range, but is now part of a
(WORK) Workgroup; The two differences are 1) the server is now in a
workgroup and 2) is now using CDO in place of CDONTS.

And the server has a different IP address. Does this IP address have a
PTR record? Is it allowed to make outbound connections to destination
TCP port 25?

I believe this is a DNS setting as telnet is hit and miss connecting
up to smtp servers...

Telnet doesn't use DNS unless you tell it to (by connecting to a
hostname instead of an IP). If you run NSLOOKUPs against the
mailserver's configured DNS server -- run from the mailserver itself
-- can you get MX records back for a range of sample domains (google,
msn, yahoo, et al.)?

For each sample MX record, can you start an outbound telnet session,
via IP, to TCP port 25?

... or has my IP range been spam blocked?

www.dnsstuff.com can help you find that out. If every single e-mail is
failing, though, this will not be due to public blacklists (unless you
coincidentally only send to a few domains).

--Sandy



------------------------------------
Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
------------------------------------

.

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