Currently maileater uses IMAP which has become a legacy. Current Exchange environment recommends to use IMAP SSL for accessing emails.
It seems IMAP over SSL is already supported since r12.9.
When edit the mailbox, you should be able to select the IMAP4 protocol, and check the 'Use TLS' option, and provide the SSL certificate path in "CA Certificate Path" field.
Can this be marked Delivered?
This was delivered in the 12.9 release of Service Desk Manager.
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