[sunilkumarv]

can you try this

Sometimes, receiving Email is working, but sending Email from Messaging account will be failed due to authentication error.

In this case, need to follow below steps on outlook.

1.Navigate to File-> Account Settings.
2.Double click Messaging account.
3.Click "More Settings" at the right bottom corner of window.
4.Click "Outgoing Server"tab.
5.Activate "Log on using"
6.Put the full Email address configured in CMM subscriber management as User Name.
7.Put the mailbox password as password.

Now, test account settings should be working.