[cisco-voip] SIP email addresses

[Joel P]

Good evening folks,

I have a quick question for the list.
Has anyone seen either Unity5/Exch2k3 or CUPS/CUPC add an email address of
the type SIP to users boxes homed in Exchange 2k3? This is in addition to
their regular SMTP, X400 etc... email addresses per user.
And if so has it interfered with the delivery of their email?

I have a customer who swears it is affecting delivery of their emails to a
select few individuals due to this. 

Thanks,

Joel P