I am using AWS SES and PHPMAILER to handle email sending in my system.
My question is, does the SES SMTP server automatically sign my emails with my DomainKey (DKIM) or do I have to do it manually using PHPMAILER?
On one hand, Amazon declares that they sign emails with DKIM, but on the other hand I see that you can add headers and sign emails with DKIM in PHPMAILER, so I don't really understand whose responsibility it is to sign my emails with it.