Weird Email issue, Recipients dont recieve every one

[Diakatarnis]

Hi there,

I have a strange issue, and wondered if anyone had any suggestions?

My client has a exchange 2003 server using postini to recieven and send emails

99% of the emails go through fine, but he was in a email conversation with a friend, and after sending his response, there was no reply. The recipient hadnet recieved the email. this has happened with a talktalk address and 2 domain addresses.

Wird thing is that looking at message tracking on the server, it leaves the exchange organization fine and goes stratigh to postini, and looking at their logs it says it was delivered fine.

Now the other thing is that he also mentioned that he tried sending to the same recipient from his blackberry which is vodafones blackberry mail thin, and not connected to the exchange server in any way, and they didnt recieve that either.

So at the moment im stuck, as im pretty sure its not the server our end thats the problem as both the exchange server and the blackberry server are having the same issues.

Any thoughts?

 

[Diakatarnis]

none of our addresses are blacklisted, however one of the addresses were having issues sending too is.

Its only on 1 blacklist on mxtoolbox, but i dont know whether this causes a massive problem or just contributes to it?

 

[Diakatarnis]

looks like i either pay 50eur to get it removed of wait 4 weeks....

so that can explain 1 address but not the talktalk one...

Im wondering whether the emails are going into the recipients junk email box instead of their inbox.

 

[Diakatarnis]

im starting to think its probably more user error than anything else.

out of 1000+ emails a week only he has a problem, none of the other users seem to ....

 

[Diakatarnis]

lol but i dont think if i tell him its all his fault, he will take kindly :S