SMTP2GO
smtp2go.comSMTP and API relay with reports for bounces, complaints and unsubscribes
SMTP and API relay with reports for bounces, complaints and unsubscribes
Campaign creation and SMTP delivery with shared suppression controls
Application email API and SMTP with a domain-verification setup workflow
Email API and SMTP delivery with grouped unsubscribe management
Privacy aliases with optional PGP or S/MIME forwarding
Newsletter and lifecycle workflows that send through the team's own SMTP provider
Email delivery with message tracking and bounce controls
SMTP and API email with independently configured application streams
Business accounts that separate tax reserves, payroll and daily spending
Transactional email delivery with a verified-domain test stage and SMTP or web APIs
SMTP and API delivery with recipient-based volume and plan-specific logs
Mozilla email masks with tracker removal and inbox forwarding
Volunteer public relays with an explicit connection-logging policy
Outgoing email relay with separate message and data quotas
AWS email sending and receiving with region-specific production access
Marketing campaigns with a choice of managed sending or a connected SMTP provider
Split-provider VPN routing with Mullvad exit servers
Send files by a short code through the terminal or browser
Connect sockets, streams and terminals for network diagnostics
Email campaign operations across connected relays and delivery providers
Transactional email with domain-level suppression controls and activity logs
Decentralized mesh with subnet sharing and relay fallback
Email API and SMTP sending with inbound message routing to applications
Newsletter sending with conditional content and message-size accounting