Dear All,
During the sending email in asp.net application I am getting this problem.
Mailbox name not allowed. The server response was: sorry, Authentication failed or timed out. Please do get messages first to authenticate yourself.(#4.4.3)
Same code is working on my local machine very well but after uploaded on server it is showing the above error. Configuration of machine - windows server 2008 , visual studio 2010 and sql server 2008
Please help me it is very urgent.
Go to the complete details ...