a patch would be amazing!
as everything in horde works perfectly with the imap server!
not found one fault so far! (apart from the not deleting correctly)

i will look into possibly moving, but it will be tricky as i said a 
lot of data and LIVE being used 7am-7pm 365days

a simply fix i found to work was to change
isset($resp->data['copyuid'] to !isset($resp->data['copyuid']
just add an ! and it works

That is a pretty minimalistic commandset your IMAP server lists. It 
*may* be possible to patch Horde to run with just this, but I doubt 
that this will give satisfactory performance.

See https://www.horde.org/apps/imp/docs/PERFORMANCE

I would opt to migrate to a more capable IMAP server. There are tools 
available to migrate from one IMAP server to another without using 
drag-and-drop. Google is your friend.

https://pastebin.com/HgFHVDDd

its the same value both BEFORE and AFTER login, unless im running the 
command wrong in telnet?

I told you to login before sending the CAPABILITY command. If the 
above is what you get after you logged in, your IMAP server is badly 
broken.

when the IMAP debug is enabled i can see the imap server replies with just OK

C: 4 UID COPY 4002 Deleted
S: 4 OK COPY completed.

0 capability
* CAPABILITY IMAP4rev1 IDLE LITERAL+ UIDPLUS CHILDREN AUTH=PLAIN 
AUTH=CRAM-MD5 AUTH=CRAM-SHA1
0 OK CAPABILITY completed.

sadly i cant replace the email server as the is over 50GB of emails 
and 30 email accounts, so it would takes ages to move them all 1 by 1 
using outlook copy and paste

The MOVE command is pretty common nowadays, so I'm surprised your IMAP 
server doesn't support this. Chances are that it doesn't support other 
(more advanced like CONDSTORE/QRESYNC) IMAP commands either, so the 
best advice *may* be to switch to a more capable IMAP server.

What does the output of the CAPABILITY command (after logging into 
your IMAP server) show?

i have found the problem inside imap_client_socket !

https://github.com/horde/Imap_Client/blob/FRAMEWORK_5_2/lib/Horde/Imap/Client/Socket.php#L3696

our server DOESNT support the MOVE command AND it doesnt return 
copyuid from the previous command to COPY the email to the folder

so its completely missing the command to expunge the email

is the a way i can fix this? without editing the raw php files?

------------------------------
S: * OK Welcome to mail1.xxxxx.org, with Code Crafters Ability Mail Server.
C: 1 [INITIAL CLIENT RESPONSE (username: simonsmith@xxxxx.org)]
S: +
C: 
c2ltb25zbWl0aEBmaXJzdHRydXN0aG9zcGl0YWwub3JnAHNpbW9uc21pdGhAZmlyc3R0cnVzdGhvc3BpdGFsLm9yZwBnYXR0aTU1MjE=
S: 1 OK AUTHENTICATE completed.
C: 2 SELECT INBOX
S: * 123 EXISTS
S: * 0 RECENT
S: * FLAGS (\Seen \Answered \Deleted \Flagged \Draft $MDNSent)
S: * OK [PERMANENTFLAGS (\Seen \Answered \Deleted \Flagged \Draft 
$MDNSent)] Limited to these flags.
S: * OK [UIDNEXT 3950] Next mail UID number.
S: * OK [UIDVALIDITY 1] UIDVALIDITY value.
S: 2 OK [READ-WRITE] SELECT completed.
C: 3 LIST "" ""
S: * LIST (\Noselect \HasChildren) "." ""
S: 3 OK LIST completed.
C: 4 UID COPY 3927 MyFolder
S: 4 OK COPY completed.
C: 5 SEARCH UNSEEN
S: * SEARCH
S: 5 OK SEARCH completed.
C: 6 LOGOUT
S: * BYE IMAP4rev1 Server logging out.
S: 6 OK LOGOUT completed.

Im hoping this is a simply fix or maybe something im doing wrong completely!

Ive setup horde and working perfectly!

Apart from for some reason when I move an email, it says its moved the 
email to the other folder on my IMAP server, but in fact its done is 
COPY and LOGOUT

So im abit confused if I have mis-configure something somewhere or ive 
done something to, break horde?

https://pastebin.com/sK3Dj3x6 - here is a DEBUG log from out IMAP server
(its a windows based one, not linux)

The log above is actually of when i move an email to another folder 
that I created using the Horde

It just does COPY then LOGOUT ?

So when you re-fresh the page or even when I check the files on the 
IMAP server, the email is STILL in the original location ?