Product Users needed to help test new spam system We need some users to help us accurately trial a new spam checking filter. The trial will last around 1-2 weeks. To keep things a bit easier, we require only people that meet
Technical Yahoo SMTP accounts sending spam It appears some spammer must be signing up masses of yahoo accounts and sending spam via yahoo SMTP. Since yahoo only allow SMTP for paid accounts I believe (their MailPlus keeps mentioning POP,
Technical New version of FastCheck fixes folder bug There is a bug in the current version of FastCheck that means recently created folders will not be checked correctly. Eric has released a new version of FastCheck that corrects this bug. You
Technical Two address resolving additions 1. Sub-domain addressing for users with _ (underscore) in their name by using - (hyphen) instead Sub-domain addressing is a feature where if you have the username joecitizen@fastmail.fm, then email sent to
Technical Bots probing for XSS vulnerabilities I've just noticed a large bunch of interesting requests in our logs. Basically they're looking like this: http://somedomain.com/ http://somedomain.com/mail/?MLS=LN-*;Uid=ea6e667f56e49c5fc52c!1200448126;UDm=1942;MSignal=VerifyAccount-*
Technical Email checksums One of the things we've been aiming for for a while is to ensure the robustness of all our stored email by keeping a checksum for every email delivered. We've now rolled this
Technical Sending email servers best practice If you run an outbound SMTP email server, then there's a number of things you should be doing to ensure smooth sending of your email. All of the things below are fairly straightforward
Technical New Backup System finished I've just finished the final component of the conversion of the backup system - a new restore utility. There were a couple of problems with the old restore utility, stemming from its design
Technical Enable duplicate deliveries Since we started FastMail, our email server has used a system called "duplicate delivery suppression" to avoid mail loops. Basically every email generated has a unique identifier in it's header called