

Short Time for Send/Receive Connection: At times, send or receive interval is put to a very short time.Therefore it results in MS Outlook 2016 sending emails twice and thus duplicates are generated. However, the message of acknowledgment was not received before timeout. The duplicates are generated when the server received the messages. At the slow internet connection, it can arrive at the timeout and will submit the messages once again when the send or receive process will begin for the next time.

This is used to inform Microsoft Outlook to think about a lost connection if there is no response from the server.

It is equally problematic for users, who have one or more web/ desktop based accounts. Microsoft Outlook 2016 sending emails twice or more than that. The duplicity of email messages while sending mails via Microsoft Outlook is one of the most annoying issues.
