AuthSMTP
authsmtp.comOutgoing email relay with separate message and data quotas
Outgoing email relay with separate message and data quotas
Business email discovery with verification statuses and list exports
Email encryption and access controls inside a wider data platform
Automatic outbound mail encryption with a fallback recipient link
Activist email with encrypted storage and recovery-code requirements
Mozilla email masks with tracker removal and inbox forwarding
Android mail with explicit image, link and encryption controls
Turn linear PDFs into booklets and back
Newsletter sending with conditional content and message-size accounting
Business email discovery with reusable lists and CRM delivery
Commerce email automation with explicit segment-entry and repeat-entry rules
Email previews and delivery reports tailored to your audience
Community email through webmail and IMAP/SMTP clients
Mailbox-level delivery checks with placement and domain-health reports
Visual newsletters with forms, landing pages and subscriber workflows
SMTP and API relay with reports for bounces, complaints and unsubscribes
Catches receipts and invoices from email and chat, then files them into your books.
Norwegian email hosting with domains, aliases and open protocols
An open-source email client funded by user donations
Encrypted email and intake forms for professional practices
Protected email with recipient access and expiration controls
Central S/MIME and PGP with an encrypted-PDF fallback
No-code platform for AI agents and multichannel customer support.