Something seems to be blocking my server, or at least some addresses

[Bammy217]

Need some help here folks,

am running an exchange v5.5 (sp3) and am having a small problem, I am unable to send emails to 2 particular addresses (namely my boss and my bank) could any one please advise on where to search for the block as I am unable to find it.

 

[Hungster]

sounds like your ISP's reverse DNS problem, go check with them, i know they won't admit it, there are some test you can do to show them.

 

[Bammy217]

cheers, could you please be a bit more specific...what tests??? (I'm affraid exchange is my weakpoint...)

 

[Hungster]

call up your ISP up and have them check the reverse DNS on their UNIX DNS server

 

[Bammy217]

thank you

 

[dmandell]

You can also go to

http://www.dnsreport.com

and check your reverse DNS yourself, and then tell your ISP the exact issues.

The reporting and explanations from this site are very good.
(and free) check it out!

 

[Bammy217]

cheers

 

[devastator]

Good website dmandell.....very informative.