Re: Cannot send mail to Hotmail and Yahoo only.

Hotmail is now requiring senderID. Yahoo probably the same.

http://emailuniverse.com/ezine-tips/?Ezine-Delivery-Into-MSN-and-Hotmail-Now-Requires-Sender-ID&id=1290


"EThterry" <EThterry@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:369A2472-5185-4783-8041-C72F8336ACE4@xxxxxxxxxxxxxxxx
> Hello all - I am looking into an issue in which I have emails flowing in
and
> outbound normally, but any mail sent to either Yahoo or Hotmail get stuck
in
> the queue. There is no error message and the queue stays active all the
> time. The current setup is - one backend active/passive cluster with 2
front
> end servers all running Exchange 2003 SP1. Both front-end servers are
> running TrendMicro scanmail and GFI Mail monitor. I have tried stopping
and
> even uninstalling these apps to no difference.
>
> DNS posture is split-split with ISA 2000 in between. SMTP diag run on
both
> front end servers reveals no errors save one - But I believe this is
normal
> in this environment:
> Serial numbers do not match: 2002030401 2006010401
> SOA serial number match: Failed with one or more failures.
> The 2 internal SOA's are the same and the 2 external SOA's are the same -
> they are just differing from internal to external.
>
> I believe this is a DNS type issue more than an Exchange issue, but all
> reverse entries and PTR records look normal and no errors come up from
> DNSReport.com or DNSStuff.com.
>
> If I change the DNS forwarders to an outside *free* service, then they
will
> both work for a short while and then stop. I am wondering if there is
> another type entry needed for these mail domains?
>
> --
> Thanks!
> ET
> MCSE+MSG, SEC+


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