asked on

Max length of MS Exchange Userid

My Network Administrator claims that a USERID > 18 bytes "causes trouble" but he does no elaborate. We use firstname.lastname for USERID and 18 bytes is not long enough for some users.

So my question: What is the maximum length of an MS Exchange 2000 USERID and where is this documented?

Thanks,
/RockFox

ASKER CERTIFIED SOLUTION

jdeclue

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jdeclue

Oh yeah... and if it is the Windows 2000 account, which often has the email associated directly with it, the maximum for AD is 57 characters. I think that is an arbitrary number on Microsoft's behalf.

J

RockFox

ASKER

Yes, I'm inquiring on maximum length of a network login name in Active Directory. I like you answer of 57 bytes. Can you tell me where it is documented?

/RockFox

jdeclue

I couldn't find it documented, so I created a user account, opened up ADSI Edit and and made a bogus name, until it wouldn't take any more characters. I then saved the account and logged in with it, to make sure it worked. Then I counted the characters;) Thats why there was 3 minutes between my two posts. Pretty anal, huh!

J

RockFox

ASKER

No, that's not anal. I probably would have done something similar if I had the priviledges.

I was hoping that I could point the Network Administrator to a Micorsoft document.

I am an IBM mainframe Systems Programmer (VM and VSE for 41 years) so of course a M$ admin wouldn't believe me if I told him the time-of-day without documentation.

Thank you much for you response.

/RockFox

jdeclue

Hah.... I hear ya.. I am a Microsoft guy,.... but I used to work for First Union, spent most of my time working with MQSeries to Unix and Microsoft platforms... spent a lot of time with guys!

J