Hm, I found interest thread: https://groups.google.com/forum/#!topic/k-9-mail/xjNz0PXZfD8
Maybe there is something ready to be used with full functionality? -- You received this message because you are subscribed to the Google Groups "K-9 Mail" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
