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troubleshooting Question

Exchange 207 Can't deliver Mails to Yahoo larger than 2MB

Avatar of mary_87
mary_87 asked on
Exchange
18 Comments1 Solution684 ViewsLast Modified:
Hello Every Body
I'm Experiencing problems with exchange 2007 standard
It fails to send emails to yahoo that is larger than 2MB or it take a lot off time after many failed attempts (with error code 421 4.2.2.2 Connection Dropped)
when I send to hotmail, gmail the message are sent straight forward
also the the mail server is connected directly to the internet through its public IP
and I have Symantec EndPoint installed on the server and symantec mail security for exchange
So can anyone help me with this?

Thanks