Re: ISP and e-mail

From: Ace Fekay [MVP] (PleaseSubstituteMyActualFirstName&LastNameHere_at_hotmail.com)
Date: 06/18/04 

Date: Fri, 18 Jun 2004 17:57:05 -0400

In news:1e8c401c45578$8a3a2780$a401280a@phx.gbl,
Mike <anonymous@discussions.microsoft.com> posted their thoughts, then I
offered mine
> I can send my e-mail to all the domains that I normally
> send too now, but I am un able to send e-mail from my
> Exchange server to people that have e-mail account with
> my ISP (Cablevision iO Optimum Online). I am on a
> residentional account so I do not want to call them at
> tell them my problem. I just recently got a virus
> (W32.Erkez.B@mm) and it put out a mass e-mail. I am
> wondering if they blocked any e-mail coming from my
> office IP-Address even though it is their own. This is
> the admin NDR message
>
> This message was rejected due to the current
> administrative policy by the destination server. Please
> retry at a later time. If that fails, contact your
> system administrator.
> <primary-server.prouddesigns.com #4.3.2>

Well, more than likely they're using reverse DNS, which checks the IP first
for a domain name, or they're blocking their subscriber IP subnet.

Can you send to someone at AOL? If you can't then reverse DNS is the issue
and from the sound of it, if that's the case, there's nothing you can do
about it, because you can't call them and ask them to create a PTR entry for
your MX record and IP address. 

-- 
Regards,
Ace
Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS-IS" with no warranties and confers no
rights.
Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
HAM AND EGGS: A day's work for a chicken; A lifetime commitment for a
pig. -- 
=================================

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