Sometimes we need to block a specific email address in postfix. Here is how to do that.
Add the following line in main.cf
smtpd_sender_restrictions = reject_unknown_sender_domain,check_sender_access hash:/etc/postfix/access
Now add the address you want to block in access file like following.
noreply@test.com REJECT
After adding the address postmap the access file.
postmap /etc/postfix/access
Now your MX will not receive any mail from the address "noreply@test.com"
Add the following line in main.cf
smtpd_sender_restrictions = reject_unknown_sender_domain,check_sender_access hash:/etc/postfix/access
Now add the address you want to block in access file like following.
noreply@test.com REJECT
After adding the address postmap the access file.
postmap /etc/postfix/access
Now your MX will not receive any mail from the address "noreply@test.com"
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