Oded, in fact, the author of the plugin is Sivaiah Nallagatla From Novell. "Default Sources" is the literal English translation of "Fuentes predeterminadas", but could not confirm it, because I had no evolution in English to see.
I fully agree that it is curious that this happens, because the plugin does not apply to mail, apparently.
However, it was a matter of disabling it, and the problem ceased to occur.
Oded, in fact, the author of the plugin is Sivaiah Nallagatla From Novell. "Default Sources" is the literal English translation of "Fuentes predeterminadas", but could not confirm it, because I had no evolution in English to see.
I fully agree that it is curious that this happens, because the plugin does not apply to mail, apparently.
However, it was a matter of disabling it, and the problem ceased to occur.