I specifically asked about anything that might need to be unblocked when I asked if they could shed any light on the problem. I’d be surprised if that didn’t prompt any thoughts.
On command line/terminal access I think I may have had a bit of a brain wobble and thought I needed terminal access at the actual server. Doh! After putting my brain back in gear I get:
local server/pop gives:
derek@derek-kubuntu:~$ telnet mail.XXXXXXXXXXX.com 110
Trying a.b.c.d…
Connected to XXXXXXXXXXX.com.
Escape character is ‘^]’.
+OK Dovecot ready.
quit
+OK Logging out
Connection closed by foreign host.
Local server/imap gives:
derek@derek-kubuntu:~$ telnet mail.XXXXXXXXXXX.com 143
Trying a.b.c.d…
Connected to XXXXXXXXXXX.com.
Escape character is ‘^]’.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE NAMESPACE STARTTLS AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
C logout
* BYE Logging out
C OK Logout completed.
Connection closed by foreign host.
For gmail I get pages full of connection and certificate information that all look ok to me.
The obvious difference (with the local server) is that it replies “Dovecot” instead of POP or IMAP.
By ‘local’ I mean the same host that the wordpress site is on – as far as I’m aware it might not even be on the same server. TBH I don’t really mind whether I get it working from the ‘local’ host or from a Gmail account. Having fiddled, for most of yesterday and today, with the Jetpack offering (‘Post by Email’) I just want to stay away from it. This is a site that has been hacked once already (in a former Joomla guise) and still attracts the ‘wrong’ sort of visitor. I’d like to rename it but can’t because of what it is. I prefer to keep xmlrpc.php access locked down.
I’ll pass your link on to the host’s support team and see if it sparks any thoughts.
Thanks for the response.