PostFix Not 100% Secure on ZPanel/Sentora

[Me.B]

smccarthy945

I've back checked your settings with defaults in zpanel.

1. mynetworks will be locked down in sentora to 127.0.0.1 & server IP.

2. smtpd_sasl_security_options = noanonymous is already in sentora config/ zpanel too.

3. smtpd_client_restrictions = permit_mynetworks not so important as long you don't use:

smtpd_client_restrictions = permit_mynetworks, reject

This will allow any authentificated client to go thru.

4. reject_non_fqdn_recipient, <-- THESE SETTINGS WILL STOP ATTACKS ??

What attacks? This is not correct, this mainly will stop sending to emails like: postmaster directly without a domain name or root. It will not allow relay.
Notice already exist in zpanel/sentora.

5. RBL. Eplained not good to be used.

I always expected you explain a bit more what DDOS attack you got as you point here mainly postfix. Was this email abuse?

M B