Plesk Onyx + lets encrypt + iphone (lack of trust button)

thanks dan,

so to confirm:

  1. are you saying, if settings are done correctly, NO email client will ask: “do you trust the SSL”?

  2. via plesk panel, LETsENCRYPT is done for client domain, call it: XYZ.com
    also via plesk, my server has LETsENCRYPT for host.servername.com

then on email client, they using for incoming and outgoing server: XYZ.com

note: all email coming/going on my server goes through host.servername.com, unless I’m wrong?

ps. I know LETsENCRYPT and Plesk are integrated (work well together)… so please correct me where I have it wrong? thanks!!!

PSS. I am lead to believe it’s the iPhone with the issue. my macbook has the “check box”, but iphone does not!