Freron MailMate

Hello,

I bought the licence a few days ago, and Since yesterday, I encounter a problem on my email account: when i open Mailmate, there is a popup with "IMAP problem for “@xxx.fr” account".
"MailMate encountered the following error: “Server response: “K10 NO UID EXPUNGE failed”. Command attempted: “K10 UID EXPUNGE 535678:535680”.”. Mailbox: “Trash”."
The options are either to retry (but it fails), to take account offline (which temprary stops the problem, but it comes back when connecting the account), or cancel message deletion (which fails)

It happened after I deleted a big quantity of emails in a row; i dont know if it could be linked?

"The activity viewer shows: 10:03:40 Ready to run action (retry count: 2)
10:03:40 Selecting mailbox: Trash
10:03:40 Clearing connection to imap.xxx.fr
10:03:40 Trying to connect to imap.univ-tours.fr on port 993 (CFNetwork) without STARTTLS (required)
10:03:40 Resolved hostname (imap.univ-tours.fr).
10:03:40 Prepare secure connection...
10:03:40 Successful connection.
10:03:40 Initiating secure connection...
10:03:40 Returned (4)...
10:03:40 Protocol version: kTLSProtocol12
10:03:40 S: * OK IMAP4 ready
10:03:40 C: K0 CAPABILITY
10:03:40 S: * CAPABILITY ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE IMAP4rev1 LIST-EXTENDED LITERAL+ MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN LIST-STATUS XLIST AUTH=PLAIN
10:03:40 S: K0 OK completed
10:03:40 Retrieving password (keychain or user request)
10:03:40 C: K1 AUTHENTICATE PLAIN xxx
10:03:40 S: K1 OK [CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST] AUTHENTICATE completed
10:03:40 C: K2 CAPABILITY
10:03:40 S: * CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST
10:03:40 S: K2 OK CAPABILITY completed
10:03:40 C: K3 ID ("name" "MailMate" "version" "r5635" "vendor" "Freron Software" "contact" "mm-imap-id@freron.com")
10:03:40 S: * ID ("NAME" "Zimbra" "VERSION" "8.6.0_GA_1242" "RELEASE" "20190402060140" "USER" "xxx@univ-tours.fr" "SERVER" "925faad7-6309-46ec-87c4-0f240cd004a6")
10:03:40 S: K3 OK ID completed
10:03:40 C: K4 SELECT Trash (CONDSTORE)
10:03:40 S: * 5 EXISTS
10:03:40 S: * 0 RECENT
10:03:40 S: * OK [UIDVALIDITY 1] UIDs are valid for this mailbox
10:03:40 S: * OK [UIDNEXT 539451] next expected UID is 539451
10:03:40 S: * FLAGS (\Answered \Deleted \Draft \Flagged \Seen $Forwarded $MDNSent Forwarded $Junk $NotJunk Junk JunkRecorded NonJunk NotJunk)
10:03:40 S: * OK [PERMANENTFLAGS (\Answered \Deleted \Draft \Flagged \Seen $Forwarded $MDNSent Forwarded *)] junk-related flags are not permanent
10:03:40 S: * OK [HIGHESTMODSEQ 620629] modseq tracked on this mailbox
10:03:40 S: K4 OK [READ-WRITE] SELECT completed
10:03:40 C: K5 NOOP
10:03:40 S: K5 OK NOOP completed
10:03:40 Performing full synchronization.
10:03:40 C: K6 UID FETCH 1:* (UID)
10:03:40 S: * 1 FETCH (UID 535678)
10:03:40 S: * 2 FETCH (UID 535679)
10:03:40 S: * 3 FETCH (UID 535680)
10:03:40 S: * 4 FETCH (UID 539449)
10:03:40 S: * 5 FETCH (UID 539450)
10:03:40 S: K6 OK UID FETCH completed
10:03:40 C: K7 UID FETCH 539451:* (INTERNALDATE)
10:03:40 S: * 5 FETCH (UID 539450 INTERNALDATE "21-Sep-2019 21:56:29 +0200")
10:03:40 S: K7 OK UID FETCH completed
10:03:40 C: K8 UID FETCH 1:539450 (UID FLAGS) (CHANGEDSINCE 620629)
10:03:40 S: K8 OK UID FETCH completed
10:03:40 Deleting messages
10:03:40 C: K9 UID STORE 535678:535680 +FLAGS.SILENT (\Deleted)
10:03:40 S: K9 OK UID STORE completed
10:03:40 C: K10 UID EXPUNGE 535678:535680
10:03:40 S: K10 NO UID EXPUNGE failed
10:03:40 Error: Server response: “K10 NO UID EXPUNGE failed”. Command attempted: “K10 UID EXPUNGE 535678:535680”.
10:03:40 Error code: 1001
10:03:40 Failed action (1010). Reset observed read/write timeouts: 8/8

10:03:40 Handling reply
10:03:40 Running action
10:03:40 Sending request (84)
10:03:40 Handling request
10:03:40 Trying to disconnect nicely (8)...
10:03:40 C: K11 LOGOUT
10:03:40 S: * BYE mail21.zimbra.univ-tours.local Zimbra IMAP4rev1 server closing connection
10:03:40 S: K11 OK LOGOUT completed
10:03:40 Clearing connection to imap.univ-tours.fr
10:03:43 Ready to run action (retry count: 3)
10:03:43 Selecting mailbox: Trash
10:03:43 Clearing connection to imap.univ-tours.fr
10:03:43 Trying to connect to imap.univ-tours.fr on port 993 (CFNetwork) without STARTTLS (required)
10:03:43 Resolved hostname (imap.univ-tours.fr).
10:03:43 Prepare secure connection...
10:03:43 Successful connection.
10:03:43 Initiating secure connection...
10:03:43 Returned (4)...
10:03:43 Protocol version: kTLSProtocol12
10:03:43 S: * OK IMAP4 ready
10:03:43 C: K0 CAPABILITY
10:03:43 S: * CAPABILITY ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE IMAP4rev1 LIST-EXTENDED LITERAL+ MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN LIST-STATUS XLIST AUTH=PLAIN
10:03:43 S: K0 OK completed
10:03:43 Retrieving password (keychain or user request)
10:03:43 C: K1 AUTHENTICATE PLAIN ••••••••••
10:03:43 S: K1 OK [CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST] AUTHENTICATE completed
10:03:43 C: K2 CAPABILITY
10:03:43 S: * CAPABILITY IMAP4rev1 ACL BINARY CATENATE CHILDREN CONDSTORE ENABLE ESEARCH ESORT I18NLEVEL=1 ID IDLE LIST-EXTENDED LIST-STATUS LITERAL+ LOGIN-REFERRALS MULTIAPPEND NAMESPACE QRESYNC QUOTA RIGHTS=ektx SASL-IR SEARCHRES SORT THREAD=ORDEREDSUBJECT UIDPLUS UNSELECT WITHIN XLIST
10:03:43 S: K2 OK CAPABILITY completed
10:03:43 C: K3 ID ("name" "MailMate" "version" "r5635" "vendor" "Freron Software" "contact" "mm-imap-id@freron.com")
10:03:43 S: * ID ("NAME" "Zimbra" "VERSION" "8.6.0_GA_1242" "RELEASE" "20190402060140" "USER" "pbrunault@univ-tours.fr" "SERVER" "925faad7-6309-46ec-87c4-0f240cd004a6")
10:03:43 S: K3 OK ID completed
10:03:43 C: K4 SELECT Trash (CONDSTORE)
10:03:43 S: * 5 EXISTS
10:03:43 S: * 0 RECENT
10:03:43 S: * OK [UIDVALIDITY 1] UIDs are valid for this mailbox
10:03:43 S: * OK [UIDNEXT 539451] next expected UID is 539451
10:03:43 S: * FLAGS (\Answered \Deleted \Draft \Flagged \Seen $Forwarded $MDNSent Forwarded $Junk $NotJunk Junk JunkRecorded NonJunk NotJunk)
10:03:43 S: * OK [PERMANENTFLAGS (\Answered \Deleted \Draft \Flagged \Seen $Forwarded $MDNSent Forwarded *)] junk-related flags are not permanent
10:03:43 S: * OK [HIGHESTMODSEQ 620629] modseq tracked on this mailbox
10:03:43 S: K4 OK [READ-WRITE] SELECT completed
10:03:43 C: K5 NOOP
10:03:43 S: K5 OK NOOP completed
10:03:43 Performing full synchronization.
10:03:43 C: K6 UID FETCH 1:* (UID)
10:03:43 S: * 1 FETCH (UID 535678)
10:03:44 S: * 2 FETCH (UID 535679)
10:03:44 S: * 3 FETCH (UID 535680)
10:03:44 S: * 4 FETCH (UID 539449)
10:03:44 S: * 5 FETCH (UID 539450)
10:03:44 S: K6 OK UID FETCH completed
10:03:44 C: K7 UID FETCH 539451:* (INTERNALDATE)
10:03:44 S: * 5 FETCH (UID 539450 INTERNALDATE "21-Sep-2019 21:56:29 +0200")
10:03:44 S: K7 OK UID FETCH completed
10:03:44 C: K8 UID FETCH 1:539450 (UID FLAGS) (CHANGEDSINCE 620629)
10:03:44 S: K8 OK UID FETCH completed
10:03:44 Deleting messages
10:03:44 C: K9 UID STORE 535678:535680 +FLAGS.SILENT (\Deleted)
10:03:44 S: K9 OK UID STORE completed
10:03:44 C: K10 UID EXPUNGE 535678:535680
10:03:44 S: K10 NO UID EXPUNGE failed
10:03:44 Error: Server response: “K10 NO UID EXPUNGE failed”. Command attempted: “K10 UID EXPUNGE 535678:535680”.
10:03:44 Error code: 1001
10:03:44 Failed action (1010). Reset observed read/write timeouts: 8/8

10:03:44 Handling reply
10:03:46 Terminating non-running connection..."

In addition, i have another problem: in my Inbox, it indicates a certain number of messages (75), but when i go on the "INBOX" folder, there is no messages (they however appear when i select the "basis of the email source"= first line of the account)

Thank you for your help!

Paul