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Migrating to exchange 2013 and Office 365 from Exchange 2010 - ran IDFix tool &nbsp;that has a list of illegal characters and duplicates for the Alias addresses identified by IDFix for Distribution Lists.<br />
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What is the impact of changing just the Alias or mailNickname attribute? &nbsp;This also changes the SMTP but DL still shows up in the GAL. &nbsp;Would this only impact any external SMTP addresses anyone would have, or locally cached data? &nbsp;<br />
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Thanks!
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Migrating to exchange 2013 and Office 365 from Exchange 2010 - ran IDFix tool  that has a list of illegal characters and duplicates for the Alias addresses identified by IDFix for Distribution Lists.

What is the impact of changing just the Alias or mailNickname attribute?  This also changes the SMTP but DL still shows up in the GAL.  Would this only impact any external SMTP addresses anyone would have, or locally cached data?  

Thanks!

Changing EXCHANGE alias - what impact?

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Office 365 is a group of software plus services subscriptions that provides productivity software and related services to its subscribers. Office 365 allows the use of Microsoft Office apps on Windows and OS X, provides storage space on Microsoft's cloud storage service OneDrive, and grants 60 Skype minutes per month. Office 365 includes e-mail and social networking services through hosted versions of Exchange Server, Skype for Business Server, SharePoint and Office Online, integration with Yammer, as well as access to the Office software. All of Office 365's components can be managed and configured through an online portal; users can be added manually, imported from a CSV file, or Office 365 can be set up for single sign-on with a local Active Directory using Active Directory Federation Services.