KMail als Linux-Alternative zu Becky!

Aktualisiert am 18. Oktober 2026

Unser Fazit

KMail can replace Becky! for users who need a full‑featured, open‑source client that supports POP3/IMAP, multiple accounts, identities, local mailboxes, filtering, and address book import. It works well for people who are comfortable with KDE and want integrated calendar/contacts. Those who prefer a minimal, lightweight Windows‑style interface may find KMail heavier and more complex.

Funktionsabdeckung80%

Lizenz: GPL-2.0-or-later
Preis: Kostenlos
Aktuelle Version: 26.08.2
Bewertung: —

KMail installieren Website ↗

Was gleich funktioniert

Both support POP3 and IMAP, allowing multiple accounts and identities.
Both store mail locally in standard formats (mbox or maildir).
Both provide message filtering/rule engines for sorting and handling mail.
Both can import/export address books in common formats (CSV, vCard).
Both render basic HTML emails and offer search functionality.

Was anders ist

KMail is part of KDE’s Kontact suite and tightly integrated with Akonadi, requiring a KDE session; Becky! runs standalone on Windows.
KMail includes a built‑in calendar and contact manager, whereas Becky! has separate tools for these.
KMail’s UI is more feature‑rich and may feel heavier than Becky!’s lightweight design.
KMail’s filtering rules are more powerful but have a steeper learning curve.
KMail does not natively import Becky!’s proprietary configuration files; manual setup is required.

Ihre Becky!-Dateien öffnen

Becky! stores its mail in a proprietary folder structure and configuration files that KMail cannot read directly. To migrate, export Becky! mail to mbox or maildir format (using its export function) and then import those files into KMail’s local folders. Address books can be exported as CSV or vCard and imported into KMail’s contact manager. Configuration such as server settings must be recreated manually in KMail.

Von Becky! zu KMail wechseln – Schritt für Schritt

Export all Becky! mail to mbox or maildir using Becky!’s export feature.
Export the address book to CSV or vCard.
Open KMail and create new accounts, entering the same server details (IMAP/POP3).
Import the exported mail files into the corresponding local folders in KMail.
Import the address book file into KMail’s contact manager.
Verify that messages, filters, and identities work as expected.

Wichtige Funktionen von KMail

Unterstützt IMAP, POP3 und lokale Mailboxen
Integrierte Kalender- und Kontaktverwaltung über Akonadi
Eingebaute Virenprüfung und Spam-Filterung (SpamAssassin)
PIM-Integration mit KOrganizer und KAddressBook
Unterstützung mehrerer Konten und Identitäten
Nachrichtenfilterung und regelbasierte Automatisierung
Vorschau und Verwaltung von Anhängen
Integration mit dem KDE-Dateimanager (Dolphin)

KMail unter Linux installieren

Ubuntu / Mintsudo apt install kmail

Debiansudo apt install kmail

Fedorasudo dnf install kmail

Arch / Manjarosudo pacman -S kmail

openSUSEsudo zypper install kmail

Häufige Fragen

Does KMail support the same mail storage formats as Becky!?

Yes, KMail can read and write mbox and maildir formats, which are the standard local storage types Becky! can export to.

Will my existing filters and rules from Becky! carry over?

No. Becky! rules are stored in proprietary files. You will need to recreate them manually in KMail’s rule editor.

Is KMail lighter than Becky! on a typical Linux system?

KMail is more feature‑rich and requires a KDE session, so it consumes more resources than Becky!. However, on a modern Linux machine the difference is usually acceptable for users who need the added functionality.