So, i am working with macOS 10.15.6 an DTPro 3.5.2 and cannot import complete Email Conversations.
It only imports the received message.
Importing in DT Settings is enabled:
The Plugin in AppleMail is active:
I tried to import from Apple Mail via “Add to DEVONtink 3”; both ways “Message” and “Mailbox”.
Also the import started in DT (Import sidebar) only imports the received message.
Have you tried archiving the Sent mailboxes independently?
PS: You really can’t “fix” email threading. Conversations and threading are not infallible mechanisms (and in fact are hindered by a lack of standards and hodge-podge of implementations over the years).
I wonder what the “normal” way is, to get Conversations imported.
What worked now:
I moved the received and the sent messages manually in a new mailbox;
so all messages belonging to a conversation are located in the same “folder”…
then I can import the whole mailbox, keeping the conversation in DT
I know this is an old thread but the workaround was to grab the subject title and use that as the search term. Then within the search results do the import and that pulls from all folders. I did a few tonight and it’s working great for me!