Other methods The general tightening of the requirements for letters and senders, for example ? refusing to accept letters with the wrong return address (letters from non-existent domain), check the domain name to IP-address, which is a letter, etc. Through these measures eliminated only most primitive spam ? a small number of messages. However, it is not zero, so the meaning of their use remains. Sort the letters on the contents of the letter header fields allows to get rid of a certain amount of spam. Some clients (eg, Mozilla Thunderbird or The Bat!) Provide an opportunity to examine the headers without downloading from the server all the email as well, and thus save bandwidth. System type ?a challenge-response? to verify that the sender ? the person, not

The first thing to have is to block spam before it enters your inbox. The only risk to this practice is that any email rejected by your spam software will be lost for good. However, sometimes antispam software wrongAnd consider to be a legitimate email as spam. First solution to dry up the spam at the source, set up SpamPal. This software will Prevent your solution (Outlook, Outlook Express or Thunderbird) to download the spam, Which will save you time to sort the mail left. This type of spam filter is effective Particularly in the case of a mailbox heavily spammedFor Which the time spent sorting and deleting spam becomes a problem. Ultimately, the user will not mind one or two good messages deleted by accident a