In order for SpamDrain to filter your e-mail before it reaches your
domain's e-mail servers the domain's MX records in the domain name
system (DNS) must be changed. ...
In order for SpamDrain to filter your e-mail the MX records for your
domain must be changed to point to SpamDrain's servers. The MX records
should look as follows:
...
The reason is that the spammers sometimes ignore the changes you made
to the MX records for your domain. Instead they continue to use your
old mail server when they...
If you use domain filtering, we recommend you to only allow SpamDrain's servers to connect to port 25 on your mail server.
This means that only the following IP addresses should be allowed to connect...
With domain filtering your email gets filtered before it reaches your email server. You accomplish this by changing your current "Mail Exchanger" (MX) in your DNS to SpamDrain's servers instead of y...
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