On 26. Oct 2020, at 11.36, lists <lists@lazygranch.com> wrote:

Actually the reverse pointer doesn't have to match. In fact this is impossible if you are setting up virtual accounts on one server for different domains. You just need to have a reverse pointer.

Most email servers look to seen if the reverse pointer has a "dyn" in it and blocks those.

Also your own email server is not behaving nicely:

<lists@lazygranch.com>: host lazygranch.com[198.199.119.111] said: 500 5.7.1
<83-136-254-93.uk-lon1.upcloud.host[83.136.254.93]>: Client host rejected:
eat a bag of dicks (in reply to RCPT TO command)

and for that reason I have blacklisted you from any help requests. You may do the same whatever you are telling me to do.

Sami