Hello everyone, I'm quite new to the administering windows server so sorry if my question seems to be silly. In my network I've got two types of mail accounts - local, managed by active directory (let's say @abc.local) and global (for instance @abc.def.com). All users have access to the local mail service and some of them also can use global. One of my users could not log into the local mail, though I was sure it should work. So I started to experiment. In the 'active directory users and computers', in the user's properties, on the 'account' tab, on the 'user logon name' dropdown list I had two choices - @abc.local and @abc.def.com, from which @abc.local was chosen. I switched to the @abc.def.com, clicking OK. It obviously did not help and since then I can't get back to @abc.local, because it is simply not on the dropdown list any more! The mail account is still there - I've checked it in the POP3 snap-up. Is there a way to reconnect the user account to his mail account without deleting it? I'm out of ideas. Please help. I will be very grateful for any kind of help. Best regards:)

This isn't an Exchange forum? What am I doing here, then? -- Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." . "Brent Hu" wrote in message news:e33554de-60ed-41fa-a2f3-3825082be77e... Hi Ptrojan, As this issue is related to Exchange, I suggest discussing it in our Exchange forum. They are the best resource to troubleshoot this issue. http://social.technet.microsoft.com/Forums/en-us/category/exchangeserver Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

The "user logon name" is known as the "User Principal Name" or "UPN" and it has absolutely nothing to do with Exchange. It may look like an e-mail address, but there is absolutely no reason that you can't have a UPN of joe-bob@glick.net and an e-mail address of freddy@krueger.com. The UPN suffix need not correspond in any way to the e-mail domains you support. -- Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." . "ptrojan" wrote in message news:9672608c-842a-401e-9c5e-a4ee3b7f056f... Hello everyone, I'm quite new to the administering windows server so sorry if my question seems to be silly. In my network I've got two types of mail accounts - local, managed by active directory (let's say @abc.local) and global (for instance @abc.def.com). All users have access to the local mail service and some of them also can use global. One of my users could not log into the local mail, though I was sure it should work. So I started to experiment. In the 'active directory users and computers', in the user's properties, on the 'account' tab, on the 'user logon name' dropdown list I had two choices - @abc.local and @abc.def.com, from which @abc.local was chosen. I switched to the @abc.def.com, clicking OK. It obviously did not help and since then I can't get back to @abc.local, because it is simply not on the dropdown list any more! The mail account is still there - I've checked it in the POP3 snap-up. Is there a way to reconnect the user account to his mail account without deleting it? I'm out of ideas. Please help. I will be very grateful for any kind of help. Best regards:) Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Thanks for your help. I must say that for a beginner it is a bit confusing. And yet, it seems that it has meaning for mail account. I've created a new test user, created mail account for him in the POP3 service, switched to @abc.local in the 'user logon name', configured outlook and it worked. Then, I switched back to @abc.def.com in the 'user logon name' and now outlook asks for password and the domain password doesn't work. Any ideas? Best regards:)

Again, the UPN has nothing to do with Exchange. Changing the UPN does not change the user's SMTP e-mail address. Did you reconfigure the POP client to use the changed logon ID? -- Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." . "ptrojan" wrote in message news:3323b829-10cb-4854-891a-e6558f53f58b... Thanks for your help. I must say that for a beginner it is a bit confusing. And yet, it seems that it has meaning for mail account. I've created a new test user, created mail account for him in the POP3 service, switched to @abc.local in the 'user logon name', configured outlook and it worked. Then, I switched back to @abc.def.com in the 'user logon name' and now outlook asks for password and the domain password doesn't work. Any ideas? Best regards:) Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Of course I did. Besides, I don't want the user to have @abc.def.com but to stay with @abc.local. Is there any other useful built in tool to manage mail accounts in windows sever besides POP3 service snap-up? Thank you for your help:)

This is an Exchange Server forum. I don't see that you've said anything about having Exchange; do you have an Exchange server? If not, you're in the wrong forum. I don't know what the "POP3 service snap-up" is, sorry. -- Ed Crowley MVP "There are seldom good technological solutions to behavioral problems." . "ptrojan" wrote in message news:ba8d95e5-0845-4656-98a0-c6d0e62bdd28... Of course I did. Besides, I don't want the user to have @abc.def.com but to stay with @abc.local. Is there any other useful built in tool to manage mail accounts in windows sever besides POP3 service snap-up? Thank you for your help:) Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."