Compare Greatmail vs. Proton Mail in 2026

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Average Ratings 8 Ratings

Total

ease

features

design

support

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Average Ratings 108,634 Ratings

Total

ease

features

design

support

Read all reviews

Description

Reliable cloud-based email hosting includes features such as spam filtering, antivirus protection, ample storage, and webmail access. It seamlessly integrates with Outlook as well as various other POP3/IMAP clients. For users with high sending needs, it offers a robust SMTP service designed for responsible senders. Additionally, there is an outbound relay service tailored for transactional emails, marketing campaigns, newsletters, and diverse applications. The infrastructure supports dedicated email servers, clustering, and multiple IP load balancing to accommodate high-volume senders effectively. With a fixed monthly fee, users benefit from unlimited sending capabilities and reputation monitoring. Greatmail stands out as an email service provider (ESP) focused on delivering business-class email hosting, SMTP hosting, and specialized email servers. Furthermore, for ISPs, software developers, and cloud architects, we also create custom solutions featuring dedicated IP servers and load-balanced configurations with multiple servers to meet specific processing needs. This commitment to adaptability ensures that all clients receive the best possible service, tailored to their unique requirements.

Description

Secure your company’s communications with Proton Mail — the business email solution trusted by over 50,000 organizations. With end-to-end encryption built in, your internal and external communications stay confidential by default. Proton Mail helps your business meet GDPR, HIPAA, and other compliance standards, while giving you full control over your data under strong Swiss privacy laws. Empower your team with encrypted email and calendar, support for your custom email domains, professional branding, and simple migration from providers like Google Workspace or Microsoft 365 — no IT team required.

API Access

Has API No

API Access

Has API No

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Integrations

Microsoft Outlook Yes

Android Yes

Apple Mail Yes

Apple iOS Yes

Canary Mail No

ClearMyInbox No

Franz No

Gmail Yes

Mail Backup X No

Postbox No

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Explore All 6 Integrations

Integrations

Microsoft Outlook Yes

Android No

Apple Mail No

Apple iOS No

Canary Mail Yes

ClearMyInbox Yes

Franz Yes

Gmail No

Mail Backup X Yes

Postbox Yes

Show More Integrations

Explore All 21 Integrations

Pricing Details

$9.75/month

Business email hosting with IMAP/POP3 access, spam filtering, and enterprise-grade reliability. Plans start at $1.95/mailbox per month (5-mailbox minimum, $9.75/month total). Each mailbox includes 10GB storage. Upgrade options available for 25GB storage and Groupware features (calendar/contacts synchronization).

Free Trial No

Free Version No

Pricing Details

$6.99/user/month

Mail Business plans include an up to 13% offer:

Mail Essentials at $6.99/month/user billed annually.

Workspace Standard at $12.99/month/user billed annually.

Workspace Premium at $19.99/month/user billed annually.

Free Trial Yes

Free Version No