In my administrator daily report I can see that someone is spamming through my server.
Most active senders
2 bounce_79db54a0b2408fa8a98f843e83cb@...tromail s.com
I am not sure why they are able to send through my server, but i was told that one of my users probably have a virus of some sort.
I know that I should look at the log file, but I donít know what to search for.
I have tried to search the forum, but i dont know any keywords for my problem.
Please, help me find the leak.