Run MailCatcher in the background, always, on OS X

README.md

Place me.mailcatcher.plist into ~/Library/LaunchAgents, then run launchctl load ~/Library/LaunchAgents/me.mailcatcher.plist.

If you use pow, echo 1080 > ~/.pow/mailcatcher and go to http://mailcatcher.dev, otherwise use http://localhost:1080.

Currently pow doesn't seem to pass websockets through correctly. Looking into this.

me.mailcatcher.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>me.mailcatcher</string>
	<key>ProgramArguments</key>
	<array>
		<string>sh</string>
		<string>-i</string>
		<string>-c</string>
		<string>$SHELL --login -c "mailcatcher --foreground"</string>
	</array>
	<key>KeepAlive</key>
	<true/>
	<key>RunAtLoad</key>
	<true/>
</dict>
</plist>

Guys 2021 and still up, but if for some reason some of you guys face the Load failed: 5: Input/output error (I did on Big Sur). Here is how to solve it (pretty simple actually)

1. Run launchctl unload ~/Library/LaunchAgents/me.mailcatcher.plist
2. Run launchctl load ~/Library/LaunchAgents/me.mailcatcher.plist

It should get things going (at least it did for me)
Btw, I just put it here for the future Me and next generations, since this Tutorial is great it should be wasted by some random mac error.

PS: Hello there future me!