====== Securing SMTP Server ======

===== DKIM =====
==== Generate DKIM keys ====

Basically, all you do is generate a public key pair and put the public key part (in ASCII) into a specially formatted TXT field in the database. Then, add the private key to your mail server. See:

[[https://www.mailhardener.com/kb/how-to-create-a-dkim-record-with-openssl]]

==== Validate DKIM ====
Use the following tool to validate your DKIM after you have generated and installed the keys

[[https://www.mailhardener.com/tools/dkim-validator]]
===== DKIM =====
Generate DKIM keys
[[https://www.mailhardener.com/kb/how-to-create-a-dkim-record-with-openssl]]
Validate DKIM
[[https://www.mailhardener.com/tools/dkim-validator]]