I was having trouble SSHing into my workstation.Â It would just hang at the login.Â I was worried that I had gotten 0wn3d.Â I logged in at the console and ran top and saw that there were a bunch of runaway imapfilter proccesses from my cron runs.
I ran imapfilter from the command line and got the following error:
ATTENTION: SSL/TLS certificate fingerprint mismatch. Proceed with the connection (y/n)? y
In order to get rid of this error and make it cronable again, I had to delete the contents of ~/.imapfilter/certificates and re-run imapfilter from the command line, telling the program to accept the cert permanently.
This mailing list post was very helpful.
I’m still going to lock down my box anyway.