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Patch to Alert Invalid Addresses 1.0 Requires Restart
by ClearCode Inc.
Shows alert if there is any invalid address in sending message.
![[Warning]](https://addons-stage.thunderbird.net/static/img/developers/test-warning.png?b=f7f5719b-69bc56b1)
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About this Add-on
Thunderbird warns if first destination address is invalid, but does not warn for further destination addresses. This add-on fixes this odd behavior and make Thunderbird check all destination addresses.
