Rather than filing messages into single folders, messages can be tagged with any number of tags. Gmail approaches mail differently than most mail hosts/providers. For more on IMAP and why you should want to use it, see Google’s introduction, and the first part of this post at TechnoLawyer. IMAP is a mail protocol that allows continuous synchronization between a mail host and one or many clients this is a Very Good Thing. This post was spawned by my frustrations with gmail, and my inclinations to save other people the effort of having to figure it out on their own. If you like the idea of saving every message forever in the gmail archives, their setup instructions are 100% correct and you don’t need this post. Update: This post is all about how to get messages to actually delete from gmail when you delete them in Maill.app or on your iPhone, rather than having deleted messages saved in the archive, As Google Intended. If anyone with an iPad can verify, please post.

Update 2: I suspect these instructions will work on an iPad as well as iPhones and iPod touches, but they haven’t been verified. Update 3: Sounds like iOS4 addresses some of this with an archive/delete toggle for gmail, as pointed out in the comments. Update 4: Step 1.1 is no longer necessary, due to updates in gmail. Update 5, December 2011: This appears to work for Apple Mail 5 under Lion / OSX 10.7 as well.

Apple imap