How to tell lingq to stop sending me emails

Some time ago I followed one or two forum threads. I do not recall, which ones. But now it seems to send me notifications all the time, although I tried to disable it many times following the links in the emails and unchecking the “follow the thread” option. I do not want to get any emails from lingq anymore. Please advice how to archieve it.
Thank you!

It seems that you are subscribed to a forum rather than just a single thread. Forum notifications are separate from the other emails from the site, so you will have to uncheck the box(es) on the forum(s) you are watching.