Migration from Maildir to mdbox on another server preserving POP3 UIDLS

Hi all,

Does anyone have a good migration document for Migration from Maildir (old server 2.1.x) to mdbox onto another new server with SIS preserving POP3 UIDLS.

Preserving UIDLs is of paramount importance so that clients don't download mails again into outlook.

Regards/DP

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