Active sync phones...

Hi

We are in coexistence (exchange 2013 & 2007)

Here is my situation

- Exchange 2007:

--> New user --> Activesync works

--> Existing user --> Activesync worked after coexistence implementation

- Exchange 2013:

--> New user --> Activesync works

Problem is that iphones / androids don't work properly after the mailboxes get moved over from 2007 to 2013.!!!

Here are my activesync URLs.  Would you please help?

Exchange 2007 ActiveSyncVirtualDirectory: legacy.domain.com (accessible outside)

Exchange 2013 -ActiveSyncVirtualDirectory: mail.domain.com (accessible outside)