You can check this out. Send email to yourself. exit thunderbird. log onto your online account and see if there is one message or three. If there is just one message, start thunderbird and see if there are now three. Then report back. thank you

Hello,

I performed the test recommended by David. The result is that the messages are not appearing three times on the server. But in Thunderbird there's only one message too! I'll see if this happens for only certain contacts.

Thank you for your continued help.

What you have achieved is proving that the problem may be elsewhere. Sometimes I have a message appear multiple times because the cache in PC hasn't updated.

Je ne reçois pas de messages d'erreur.

The problem seems to be gone? You tested and there were not multiple messages.

No, the problem isn't solved. This morning I received three messages again.

I'll monitor this for a few days to determine if it's happening with only certain contacts. I'll update you with the results.

Bonjour, Le problème continue. Il semble que cela se produit aléatoirement et ne dépend pas du contact.

Hello, The problem continues. It seems that this happens randomly and does not depend on contact.

Reminder: if you see three messages in Thunderbird, check online to see if there are three on the server.