Hi All, 

Please help me,

if I send an email to someone, the recipient will get 5-10 or  more than than ten copies of same email. The sending emails taking too much time to disappear from the outbox. 

Hello,

The same thread has been discussed earlier also. So i suggest you to refer the below given link in order to find the solution for the same.

https://social.technet.microsoft.com/Forums/en-US/5821586f-d87f-4da9-a95a-27fc90926eb1/outlook-2010-performs-sendreceive-task-twice?forum=outlook

Regards

Clark Kent

Hi,

What type of email account are you using?

Does this issue happen to recipients or a certain one?

Since it takes too much time to disappear from the Outbox, this issue may happen if the send/receive interval is set to a very short period. To fix the issue, you'll need to set the send/receive interval to a longer period than it takes to disappear from the Outbox.

As for the email being stuck in Outbox for a long time issue, please make sure there is no internet connection issue when sending the email message. We can also try to create a new mail profile in Control Panel > Mail and then reconfigure your email account to see if it will help.

Regards,

Steve Fan
TechNet Community Support