We have experienced issues while migrating a customer from Lotus Notes to Microsoft Exchange. The issue centered around any encrypted messages that they try to migrate over to Exchange would not be able to be read by the migration tool.
Fortunately for us, Lotus (IBM) has a technote which allows you to remove encryption from messages in these messages. First, you need to create a view called Encrypted.
Then create a LotusScript menu action:
Sub Initialize ' This script was copied from the IBM Knowledge base tech doc 1089495 - How to Remove Encryption ' from Mail Documents (When Converting Licenses from NA to International) - ZW Dim s As New notessession Dim db As notesdatabase Dim view As notesview Dim doc As notesdocument Dim nextdoc As notesdocument Set db = s.currentdatabase Set view = db.getview("Encrypted") Set doc = view.getfirstdocument While Not doc Is Nothing Set nextdoc = view.getnextdocument(doc) ' The below loop is mandatory to ensure that all $FIle entries are unecrypted (sic - ZW) Forall i In doc.items If i.isencrypted Then i.isencrypted=False End If End Forall 'Must have at least 1 field encrypted in order to call Encrypt method Dim temp As New NotesItem(doc,"tempjunk","temp") temp.IsEncrypted=True Call doc.encrypt Call doc.save(True, False) 'This portion can now remove the fields relative to encrypting the single token encrypted field. Call doc.removeitem("$Seal") Call doc.removeitem("$SealData") Call doc.removeitem("SecretEncryptionKeys") Call doc.removeitem("Encrypt") Call doc.removeItem("tempjunk") Call doc.save(True, False) Set doc = nextdoc Wend End Sub