How can I block specific incoming emails?
Overview
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Instructions
For detailed instructions and screen shots, please see: this article - specifically steps 5 and 6.
Via Plesk
- Log in to your server's Plesk Control Panel and click on Server, see Figure 1.
Figure 1. - Look for the Spam Filter icon and select it to go to your SpamAssassin settings page, see Figure 2.
Figure 2. - Select the tab for managing the global block list settings, see Figure 3.
Figure 3. - Select Add Addresses, see Figure 4.
Figure 4. - Select the From list option and add the patterns you would like to filter as illustrated in Figure 5.
Figure 5.
TIP:
To get you started, here are a couple of examples:
- *@*.<ccTLD> - Block e-mails from a specific country's top-level domain.
- *@domain.tld - Block e-mails from a specific domain.
- Once you are done inputting entries for this list, select OK and you'll be brought back to the previous screen. You will see a confirmation that your entries have been added, see Figure 6.
Figure 6.
Add addresses via SSH
This method goes one step beyond marking unwanted messages as spam. It will actually send a bounceback to the sender, with the following message:
SMTP error from remote mail server after RCPT TO:<username@example.com>: host mail.example.com [70.32.86.175]: 553 sorry, your envelope sender is in my badmailfrom list (#5.7.1)
To add email addresses to your badmailfrom list via SSH, please follow these instructions:
- Log into your server with a root or sudo user via SSH.
- Open or create your badmailfrom file by executing the following command:
vi /var/qmail/control/badmailfrom - Add each desired email address, server name, or IP on a separate line. Save the file.
TIP:
vi tip: Press "i" to enter "insert mode" so you can type and copy/paste. Press "Esc" to exit "insert mode" when you are done modifying the file. Type ":wq" to save and quit.
- Restart the appropriate mail services with the following line:
/usr/local/psa/admin/bin/mailmng -o ; /usr/local/psa/admin/bin/mailmng -p ; /etc/init.d/xinetd restart ; /etc/init.d/qmail restart