Mailbux vs Proton Mail Business: Privacy, Price, and Features Compared

Mailbux vs Proton Mail Business: Overview

Proton Mail built its reputation on end-to-end encryption and Swiss privacy laws. For businesses handling highly sensitive data, that is compelling. Mailbux focuses on unlimited scalability at flat pricing. Both serve business email—with very different priorities.

Pricing Comparison

Feature	Mailbux	Proton Mail Business
Price	One flat price per plan	Per user (check their current list price)
20 Users/Year	$95.40 (Professional)	Per-user price × 20
Unlimited Business Mailboxes	Yes (min 1 GB each)	No
End-to-End Encryption	TLS in transit	Yes (PGP-based)

Security Comparison

Proton Mail leads in encryption—messages are encrypted at rest and in transit with zero-access architecture. Mailbux provides TLS encryption in transit and server-side encryption with full SPF/DKIM/DMARC support.

For most businesses, TLS encryption meets security requirements. For industries handling medical records, legal communications, or classified information, Proton Mail extra encryption layer may be required.

Scalability

This is where Mailbux dominates. Proton Mail charges per user, making it expensive for large teams. Mailbux's unlimited business mailboxes on paid plans mean you can scale freely.

Verdict

Choose Proton Mail if privacy and encryption are your top priority. Choose Mailbux if you need scalable, affordable business email with solid security. Start with Mailbux.