Application Development Software

We are in need to move users from one store server to another.

I am tryng to use the MoveUser utility but IMAP keeps coming back with the following error

%Encryption or a stronger authentication mechanism required
%Encryption or a stronger authentication mechanism required
%Encryption or a stronger authentication mechanism required
Server responded [Too many authentication failures]


I'm running this as the privileged mail user

and have the following imap service information on both servers

service.imap.allowanonymouslogin = no
service.imap.banner = "%h %p service (%P %V)"
service.imap.createtimestamp = 20031121172923Z
service.imap.enable = yes
service.imap.enablesslport = no
service.imap.idletimeout = 30
service.imap.maxsessions = 4000
service.imap.maxthreads = 250
service.imap.modifytimestamp = 20040322150528Z
service.imap.numprocesses = 1
service.imap.objectclass = nsmsgCfgImap
service.imap.plaintextmincipher = 0
service.imap.port = 143
service.imap.sslcachesize = 0
service.imap.sslport = 993
service.imap.sslusessl = no


Anyone familiar with the MoveUser utility?

Thanks