We are working on webmethods 7.1 version and having an email port with multithreading set to No.
It is basically reading each mail one by one and processing them.
It was working fine from few days but suddenly we found that the port is working intermittently. It works and processes mails for some time and after some time it stops working on its own even though the port is in enabled state. After the port stops working, we need a manual intervention and refresh the port manually to get it running again.
Any sort of help will be appreciated