Boo­me­rang is sup­po­sed to make up for a lack of mail sche­du­ling in Gmail. Good idea, but sadly too much flaws to make it a viable option.

• You must resort to the English inter­face (I tried with English (US); I did not try English (UK)); at least with French, the « Send Later » but­ton won’t appear.
• You must allow pop-ups for authentification!
• You must allow IMAP access; if you acti­va­ted the Advan­ced IMAP control lab, you must also allow Drafts to be visible in IMAP — does it mean that Boo­me­rang has access to my mail?
• The Hour must be ente­red manually, because the bulit-in calen­dar doesn’t allow selec­ting hours.

Extra condi­tions:

• Sche­du­led mails do not appear in Drafts, but in a <q>Boomerang-Outbox</q> label (or in a new but­ton in the toolbar!
• It seems that Boo­me­rang for Gmail can’t be deployed in Google Apps; it must be manually ins­tal­led in any Chrome browser :/
• Worst of all, the free ver­sion only allows for 10 mes­sages to be scheduled.

It’s a shame, espe­cially consi­de­ring an ear­lier ver­sion was much better.