this problem still exists. The job logs say no mail found.
I have probably 6 e-mail triggers that check from different jobs every 60 seconds. Even if the subject doesnt match, it is still deleting the e-mail from the account.
I set up a test account
visualcron@xxxx.com inside our domain, pop3.
The e-mail shows up in the outlook window i'm watching, then 20 or so seconds later it is deleted. I even typed laksjdfl;skadjfs;adlkj as the subject but it was still deleted by visual cron and no jobs ran. Nothing else is using this e-mail or checking it. I disabled visual cron completely and saw that the e-mail would stay in the inbox, then when i re-enabled all the jobs the e-mails got deleted even if it didn't match and nothing ran