Gmail Doesn't Like My Cron
- by Robery Stackhouse
You might wonder what *nix administration has to do with maker culture. Plenty, if *nix is your automation platform of choice. I am using Ubuntu, Exim, and Ruby as the supporting cast of characters for my reminder service. Being able to send yourself an email with some data or a link at a pre-selected time is a pretty handy thing to be able to do indeed. Works great for jogging my less-than-great memory.
http://www.linuxsa.org.au/tips/time.html
http://forum.slicehost.com/comments.php?DiscussionID=402&page=1
http://articles.slicehost.com/2007/10/24/creating-a-reverse-dns-record
http://forum.slicehost.com/comments.php?DiscussionID=1900
http://www.cyberciti.biz/faq/how-to-test-or-check-reverse-dns/
After going on a huge round the world wild goose chase, I finally was told by someone on the exim-users list that my IP was in a range blocked by Spamhaus PBL.
Google said I need an SPF record
http://articles.slicehost.com/2008/8/8/email-setting-a-sender-policy-framework-spf-record
http://old.openspf.org/wizard.html
http://www.kitterman.com/spf/validate.html
The version of Exim that I could get from the Ubuntu package manager didn't support DKIM. So I uninstalled Exim and installed Postfix
https://help.ubuntu.com/community/UbuntuTime
http://www.sendmail.org/dkim/checker