Link to home
Start Free TrialLog in
Avatar of emiahmad
emiahmadFlag for Saudi Arabia

asked on

Exchange 2010 Client was not authenticated .

Hello all,

I have Exchange 2010 SP2 facing the following issues :-

1- OWA working very Good also can send and recieve without any problems.
2- MAPI Clients from internal facing the following screen and from outside facing  " 5.7.1 Client was not authenticated  "

User generated image
3- some times i face the following screen from google .

User generated image
the following screens applied on my receive connector

User generated image
User generated image
just from 24 HRS i changed my MX record IP also the PTR not updated , Please advice .
Avatar of Hendrik Wiese
Hendrik Wiese
Flag of South Africa image

Hi,

Please try one of the following.

Option 1:
1. On the authentication tab, try un-checking "Offer Basic authentication only after starting TLS".
2. Restart the Exchange services and test if it works

if option 1 did not do the trick, then do the following:

Option 2
1. Check the "Offer Basic authentication only after starting TLS" that we have unchecked in option 1.
2. Uncheck "Exchange Server authentication"
3. Ones again restart the Exchange services and test if it works

Hope this helps!
Avatar of emiahmad

ASKER

still the problem !
ASKER CERTIFIED SOLUTION
Avatar of emiahmad
emiahmad
Flag of Saudi Arabia image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
it's only ISP issues