i have given exch 2013 mailbox full access on exch 2010 mailbox.

we have already set NTLM on all servers 2010 and 2013.

tried internal and external client require SSL true and false.

our mailflow still points to exch 2010.

when i give 2010 mailbox full permissions on 2013 mailbox it does not as for password.

is is normal to ask password or something needs to be changed?

sawantpn86

Hello,

You can refer to the following thread:

https://social.technet.microsoft.com/Forums/office/en-US/70716f0c-151c-4ba4-93c1-d0bdc5f4207a/exchange-2013-mailbox-trying-to-access-shared-mailbox-of-exchange-2010-gives-credential-popup?forum=exchangesvrclients

Thanks,

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