MailWasher Pro works directly with your email server, exactly like your email program does. But there is one important difference: you can tell MailWasher to delete a message at the server, without downloading it.
MailWasher retrieves information about all your email on the server. With that information (some of which is also processed by MailWasher), you can decide what to do with each individual email - download or delete.
If you check your accounts with MailWasher first, you can delete the email you do not want. Then, when you use your email program, it downloads only the remaining email, those that you want to read.
MailWasher can be thought of as a "first line of defense" which weeds out junk, large wasteful attachments and potentially harmful viruses.