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I normally use Thunderbird as my email client, but the other day I accidentally started up evolution.
Now the envelope icon in the indicator area contains information about both Thunderbird and Evolution. Since I'm not using Evolution, I tried to get rid of the Evolution information by uninstalling the evolution-indicator package, but this didn't help. I still have both Thunderbird and Evolution listed when I click the envelope icon. (And, yes, I did restart the computer.)
The /usr/share/indicators/messages/applications/ directory only contains Thunderbird and Empathy, not Evolution.
How do I get rid of the Evolution information?