Thunderbird adds the same sender to incoming messages
Thunderbird adds the same sender (and wrong) to all my incoming messages, even those that I send to myself from one of my mailboxes to the other. This sender does not appears on the header when I check directly on the mail server of my provider from where TB downloads the messages, so it's obviously TB that adds this sender. Do anyone have an explanation for this behaviour and how to fix it? Thank you
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Thunderbird displays the name used in your address book not the one stored in the email by default. What you are saying indicates your need to locate the incorrect entry in your address book and fix it. Probably by deleting it.