This crash happens when the server isn't able to resolve the MSN:
FATAL EXCEPTION: IdleReader 3:Inbox
Process: com.android.email, PID: 3200
java.lang.ArrayIndexOutOfBoundsException: length=0; index=0
at com.android.email.mail.store.ImapFolder.extractImapChanges(ImapFolder.java:1641)
at com.android.email.mail.store.ImapFolder.access$700(ImapFolder.java:77)
at com.android.email.mail.store.ImapFolder$1.run(ImapFolder.java:294)
Change-Id: I8a8c7cf3f2949630ee9db3646e5832246d69132d