I user exchange server 2007 as my email server. I have installed it one month ago and it's working properly. One of the users sent a mail yesterday and got the following error messages #554 Transaction failed, DATA reply code ##, the following organisation has refused your message: vex.vtel.ae. What can be the problem ? Thanks for your help.
July 24, 2008 10:01 AM
July 24, 2008 2:56 PM