Migrate from Exchange 2019 to Axigen

Hello,

I have Exchange 2019, setup the IMAP for it, it is set as plain text auth, it work with client and with telnet. Now in Axigen I have created user, set the same password as in Exchange (AD), but the connection fails with:

MIGRATION:0000D8FC: Connected to [192.168.2.100:143]
MIGRATION:0000D8FC: << * OK The Microsoft Exchange IMAP4 service is ready.
MIGRATION:0000D8FC: >> axigen CAPABILITY
IMAP:0000D8FC: User [damjank@redactedinfo] successfully authorized!
IMAP:0000D8FC: >> 2 OK AUTHENTICATE completed [1 msec]
MIGRATION:0000D8FC: << * CAPABILITY IMAP4 IMAP4rev1 AUTH=PLAIN AUTH=NTLM AUTH=GSSAPI STARTTLS SASL-IR UIDPLUS MOVE ID UNSELECT CHILDREN IDLE NAMESPACE LITERAL+
MIGRATION:0000D8FC: << axigen OK CAPABILITY completed.
MIGRATION:0000D8FC: >> axigen ID NIL
MIGRATION:0000D8FC: << * ID ("name" "Microsoft.Exchange.Imap4.Imap4Server" "version" "15.2")
MIGRATION:0000D8FC: << axigen OK ID completed
MIGRATION:0000D8FC: >> axigen LOGIN damjank *******
MIGRATION:0000D8FC: << axigen NO LOGIN failed.
MIGRATION:0000D8FC: Unexpected text read (axigen NO LOGIN failed.)
MIGRATION:0000D8FC: closing session with [192.168.2.100:143] (migration failure)
MIGRATION:0000D8FC: user 'damjank@redactedinfo' has been migrated with errors from '192.168.2.100:143'

Now for the two lines with IMAP i do not know if they are part of migration of part of regular communication with imap mail client…

Anyway, any input here would be greatly appreciated since I need to wrap this migration up and switch over to axigen. Thank you