Sorry, this is a bit off topic: I'm looking for advice on a particular
problem, and am hoping that someone in the group has faced it
themselves.

I need to move the domain on which my principal email address is
defined (pwduffy.org.uk) to a new provider. The reason is that my
current provider's email server is constantly getting blacklisted by
antispam agencies (another of the provider's customers is apparently an
incorrigible spammer) - and this is apparently resulting in my outgoing
emails often ending up in recipients' spam folders, or not arriving at
all. (I've just discovered that a really important email that I sent a
few weeks ago didn't arrive, and it's resulted in massive problems: I
should have followed it up when the recipient didn't reply, but
unfortunately failed to do so.)

The main thing that I'm worried about is the disruption whilst the
domain is in the process of being transferred, and particularly of
incoming emails bouncing, and the senders flagging up my address as
non-existent (for example - I'm anticipating having to resign
temporarily from this list, and from others to which I've subscribed,
and then rejoin when the email's working via the new provider). It's a
massive faff, and I've been literally putting it off for years - but
after the latest incident, I really need to bite the bullet.

Has anyone been through the experience of having to move a domain on
which an important email address is defined? It would be useful to know
the process which was followed, and any particular pitfalls and
workarounds.