Alternativa Dilmancu za Gmail z licenco odprtokodnega vira

• Gmail
  Vse platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone Blackberry Apple Watch iPad Android Tablet Kindle Fire Web Self-Hosted Firefox Opera JavaScript Python Apple Messages S60 Chrome Microsoft Edge Gmail XenForo Google Drive - Docs Telegram bot API phpBB Rust MyBB Forumotion.com
• Open Source licenca
  Vsako dovoljenje Brezplačna licenca Open Source licenca Trgovsko dovoljenje