how can i be sure when i send a message to spam that it is blocked
When I send a junk mail to spam, the next day it appears again, is there a way to have spam mails blocked?
ప్రత్యుత్తరాలన్నీ (1)
Using Junk Mail Controls requires a certain amount of training the filter. So you may not see the effect immediately. http://kb.mozillazine.org/Junk_Mail_Controls#Training_the_Junk_Mail_Controls