ProtonMail is a full email inbox service with hosted mailboxes, storage, calendar, contacts, web and mobile apps.
ImprovMX offers advanced1 email forwarding to your existing mailbox (i.e. Gmail).
Your choice largely depends on if you need a hosted inbox or prefer to use your existing inbox.
Pricing
Full custom domain free plan, light plan with SMTP sending and better scaling with many domains/aliases.
Branded Free account, paid custom domains.
Email Forwarding
Email forwarding with advanced features.1
Forwards messages with simple rules and conditions.
SMTP Sending
Supports SMTP sending.
Supports SMTP sending.
Hosted Mailbox
No mailbox, we forward to your existing inbox.
Full mailbox with inbox, folders, and email storage.
Apps & Ecosystem
No suite of apps, just email forwarding.
Full ecosystem with web, mobile, and desktop apps.
Scalability/Limits
Scales well with transparent limits. Talk to us for uncapped limits.
Scales well for teams and organizations via Proton for Business.
Logging/Analytics
Only basic security events logged.
Compliance
ImprovMX is GDPR compliant.
Questions? Reach out to us, we'd love to chat about email service providers.
Your domain deserves better email
Set up in minutes and forget about it.