When sending messages with attachments (not sure about the others) with a probability of 20% occurs hang dispatch: the top of the wheel is spinning and no response to any buttons / links.
The probability increases with increasing the number of attachments. We have to close your browser window and enter again.
However, in cases nekotoroyh letter goes, and sometimes not.
But in all cases, it does not get sent to.
All of this occurs in different versions of Explorer.
What can I do?
