Hook to change mail server

Hi, is there an action/filter to switch up the mail server based on the email contents?

(Or a like in the code to insert a do_action?)

Using “wp_mail” has access to the email details but not the server info, but at phpmailer_init there is the opposite problem – and only works when mailer type is set to phpmailer.

I think I’m getting lost in the page/plugin lifecycle and guidance would be great.