The best replacement for exchange is imap.

The best alternatives to exchange are rated as following:
★★★★★  imap
★★★★  gmail
★★★★  outlook
★★★  google apps
★★★  domino
★★  hyperoffice
★★  pop3
★★  lotus notes
★★  pop
★★  groupwise
★  office 365
★  zimbra
★  otc
★  google mail
★  completion
★  refill propane tank
★  notes
★  refund
★  smtp
  trade
  365
  euro
  off exchange
  swap
  emporio armani
  rate
  sharepoint
  change
  market
  refund consumer rights
  exchange activesync
  mobileme
  barter
  nasdaq
  refill
  plasmapheresis
  crossroads
  peso
  armani
  public exchange
  return
  forward exchange
  store of value
  lotus
  sendmail
  in house
  active directory
  direct transfer
  plato\u0027s closet
  stock index
  lotus domino
  mobile me
  reverse osmosis
  over-the-counter market
  kerio

Your alternative for exchange is not listed? Suggest!
Speaking about exchange, one probably shouldn't forget about active directory.

Other search terms related to exchange and their ratings are:
★★★★★ active directory
★★★ apple mail
★★★ google apps
★★★ iphone
★★★ gmail
★★ mac mail
★★ thunderbird
★★ multiple domains
★★ outlook
★★ outlook.com
★ android
★ blackberry
★ office 365
★ outlook express
★ windows live mail
vows
domain controller
evolution
production
google calendar
mobile me
bes
ical
mail.app
You have in mind a companion for exchange and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of exchange in all years. Click on graph for more.
exchange
imap
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