Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
Auth-Email provides SMTP, POP, and IMAP OAuth Relay for Gmail and Microsoft 365. It is not a traditional bulk email platform; rather, it acts as a relay layer that enables email clients, devices, or applications lacking modern OAuth support to continue sending and receiving emails. It is particularly suitable for legacy system compatibility and modern authentication migration for enterprise mailboxes.
In terms of channels, the service only covers email via SMTP, POP, and IMAP. The Free Trial only includes IMAP/POP without SMTP; paid plans are required for full send/receive capabilities. Integration features are quite granular: it supports IPv4/IPv6, unlimited client connections, "send as" addresses, and the option to emulate OAuth applications. The Personal plan and above support legacy SSL/TLS, devices without SNI, STARTTLS across all protocols, IP restrictions, and partial behavior-modification plugins. The Pro plan targets enterprise OAuth scenarios, supporting custom OAuth clients, shared/delegated mailboxes, Google Workspace service accounts, authorization invitations, PKCE, multiple OAuth grants, and the option to choose US/EU server locations.
Pricing follows a subscription model, with annual billing noted to save 25%. The Starter plan is $7/month or $59/year, offering 1 account and 2GB/month; Personal is $19/month or $159/year with 5 accounts and 10GB/month; Pro is $199/month or $1799/year with 25 accounts and 100GB/month. Its advantage lies in unlimited messages and client connections within the plans, though practically constrained by data traffic and account limits. For legacy client compatibility needs with a small number of mailboxes, Starter/Personal offer high cost-effectiveness; however, if the sole purpose is large-scale email sending, it is not the most direct choice.
Pros include a clear positioning focused on bridging OAuth with traditional email protocols, strong compatibility with legacy devices, and a stated policy of not tracking sent/received emails. Cons are that the official documentation does not disclose deliverability rates, latency, SLAs, status pages, compliance certifications, or data retention details; the free tier lacks SMTP support, making it impossible to fully test the sending chain; and enterprise compliance assessments still require further inquiry.
It is suitable for individuals, IT teams, and enterprises that still rely on legacy email clients, scanners, business systems, or automation scripts, while their mailboxes have migrated to Gmail or Microsoft 365. Access from mainland China is not mentioned in the documentation, and Stripe payments may also be affected by domestic bank card and network environments. If access from China or compliance requirements are higher, you might compare it with Microsoft Graph API, Gmail API, or email services like SendGrid, Mailgun, Postmark, and Amazon SES.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on auth-email.com official site.
auth-email.com is an Unknown Comms & Email provider. TG4G tracks its product information, an overall rating of 7.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach auth-email.com directly.