jwildeboer, People sending me e-mails, me replying to them only to find out that their mailserver is blocking my mailserver for weird reasons, forcing me to reconfigure my mailserver so I can get through with their mailserver which immediately blocks me again for "abusive behaviour". Well, sorry, fan of my blog. You'll never get my reply I guess. Also dear mailbox.org: your laziness wrt throwing blacklists in your server config is excluding small servers. You are NOT helping with decentralising e-mail.