There are many alternatives to Alpine for Linux if you are looking for a replacement. The best Linux alternative is Evolution, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Alpine and ten of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to Alpine are Mutt (Free, Open Source), Kontact - KMail (Free, Open Source), Kontact (Free, Open Source) and aerc (Free, Open Source).
KMail is the email component of Kontact, the integrated personal information manager of KDE. Kontact is a personal information manager and groupware software suite for KDE. It supports calendars, contacts, notes, to-do lists, news, and email.
Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful KPart technology, existing applications are seamlessly integrated into one.
Sup is a console-based email client for people with a lot of email. It supports tagging, very fast full-text search, automatic contact- list management, custom code insertion via a hook system, and more.