Sure, there are things that have to be taken into account (keeping email and userPrincipalName in sync, creating UPN suffixes, etc.). All of those are trivial.
However, userPrincipalName is used in building an authentication credential, same as the older domain\account. They build exactly the same credential. -----Original Message----- From: Albert Lunde [mailto:atlu...@panix.com] Sent: Tuesday, December 18, 2012 11:48 AM To: MS-Exchange Admin Issues Subject: Re: Exchange 2010 logon OWA and ActiveSync questions On 12/18/2012 9:43 AM, Michael B. Smith wrote: > Are you using form-based authentication? > > Why not make your userPrincipalNames match the primary SMTP address? > > (And just to note: In Exchange 2013, using the primary SMTP address is > the default method using FBA.) > There may be gotchas involved when someone decides to change their e-mail address. I think the userPrincipalName is involved in lower levels APIs so changing it may have unexpected side effects. Plus the e-mail domains and AD DNS domain names may differ. --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe exchangelist
