Lettre is described as 'provides the following features:Multiple transport methodsUnicode support (for email content and addresses)Secure delivery with SMTP using encryption and' and is an app in the Office & Productivity category. There are five alternatives to Lettre for a variety of platforms, including Linux, Mac, Windows, the Web and BSD. The best alternative is Postfix, which is both free and Open Source. Other great apps like Lettre are MailHog (Free, Open Source), OpenSMTPD (Free, Open Source), Inbucket (Free, Open Source) and Go-Guerrilla (Free, Open Source).
- 5 alternatives