Proton Mail vs Altospam Comparaison (2026)

Compare Proton Mail vs Altospam email services. In-depth analysis of features, pricing, security, privacy, and storage to find the best email provider for your needs.

Écrit par

Forward Email Équipe

Publié

4/1/26

Il est temps de lire

Moins de 5 minutes

Nous recommandons Transférer un e-mail comme la meilleure alternative à Proton Mail. We also support webmail: https://mail.forwardemail.net

Comparaison des services de messagerie électronique

20 faits en comparaison

Proton Mail	contre.	Altospam
Proton Mail "Courriel sécurisé qui protège votre vie privée" Site web	contre.	Altospam "Logiciels antispam, antivirus et anti-hameçonnage" Site web
$3.99/mo	Tarification	Requires you to talk to a sales team
15 GB	Stockage	Requires 3rd party
25 MB	Pièces jointes	Unknown
❌ Proton Mail claims to be open-source, but their back-end actually is closed source	Open Source	Non
Non	Chiffrement en bac à sable	Non
Non	Domaines illimités	Non
Non	Alias illimités	Non
Non	TTI	Non
❌ Requires you to download Proton Mail Bridge and forces vendor lock-in	SMTP	❌ Requires 3rd party
❌ Requires you to download Proton Mail Bridge and forces vendor lock-in	IMAP	❌ Requires 3rd party
❌ Proton Mail does not support POP3	POP3	❌ Requires 3rd party
Non	API	Oui
⚠️ Proton Mail rewrites your emails	E2EE	Non
Oui	OpenPGP	Non
Oui	WKD	Non