DNS ??

[cj7owner]

We just recently switched ISP's and went to a T1 at the same time. This problem is kind of hard to explain.

I have 3 POP users out of about 40 that cannot send mail thru our exchange virtual servers. (2 users use Bell and 1 uses Rogers)

I have 3 virtual servers setup (port 25, 587, 588) for specific reasons.

The 3 pop users (doesn't matter which virtual server we use) cannot send mail. The user gets "server connection was interupted" and stops.

I can change the users to their ISP smtp outgoing server and it works fine obviously but is not very portable.

Would this be corruption in the store? or something I am missing, I have confirmed DNS, rnds, MX records and to me it all looks good.

Are some ISP's now blocking routing through other servers? stupid if you ask me....help

 

[markdmac]

Lots of ISPs will block port 25.

Have your users use OWA instead.

I hope you find this post helpful.

Regards,

Mark

 

[cj7owner]

yes, that is one reason why we use port 587 for Rogers, the higher ups don't want to use OWA for some reason. We also only have one server. So I am stuck with popping.

I ran eseutil and isinteg last night to see if that will help. don't know yet.

 

[markdmac]

You could use Outlook Over HTTP instead.

I hope you find this post helpful.

Regards,

Mark