by Mario Aeby

During the years I've got a few mailboxes on different servers. I programmed a PHP-Script which regularly checks my mail-accounts and notices me of new mails by SMS.

After succesfully running the script for months, I got interested in measuring the duration of each IMAP connection. RRD Tool is a nice and comfortable way to visualize the fluctuations which occur throughout the day - is it because I'm downloading stuff or because the mail servers have to handle more requests than usual.