AuthSMTP
authsmtp.comOutgoing email relay with separate message and data quotas
Outgoing email relay with separate message and data quotas
Self-hosted email delivery with per-server queues, retention and message investigation
Email API, SMTP and campaigns with batched event notifications
Email delivery with retry keys, inbound mail and contact-based broadcasts
Email campaigns, automations and transactional templates billed by sends
Email campaign operations across connected relays and delivery providers
Transactional email, campaign broadcasts and event-triggered workflows in one platform
Transactional email with domain-level suppression controls and activity logs
Email delivery and stream-level monitoring for teams managing multiple senders
Application email with distinct transactional and broadcast message streams
Transactional email sending and inbound messages forwarded as JSON
Email delivery and campaign software with list-specific or global suppression scope
WordPress newsletter campaigns with site-triggered automation workflows
Email campaigns and application messages with shared recipient capacity and delivery reports
Transactional email and campaigns with separate content and metadata retention settings
Newsletter campaigns and commerce follow-ups with subscriber or prepaid access
Hosted email with plan-specific PGP and metadata controls
Custom-domain forwarding with optional encrypted mailboxes
Norwegian email hosting with domains, aliases and open protocols
A hosted inbox that can also combine existing mail accounts