Gmail users

[sage]

Gmail users! Your AO3 comment notifications MIGHT now be routed straight to your gmail spam filters. Today I discovered some 30+ messages in there from the last week or so. That included comment notifications on my own fics, as well as those handy new-post notifications on the authors I subscribe to.

Adding "do-not-reply@archiveofourown.org" to your gmail contacts list should keep it from filtering AO3 notifications as spam. (Knock wood.)

Another unofficial solution: http://shinykari.tumblr.com/post/31376335509/gmail-is-marking-some-emails-from-ao3-as-spam