When you visit a user X page (or user_talk X page) to send an email to this user
X, the wiki (1.3.7) wants to hijack you to the Main_page.
It makes no sense to go to Main_page.
I propose: to return back to the page from which you sent the mail which is the
user X (or user_talk page X).
no hijacking, please :-)
Version: unspecified
Severity: enhancement