mailkube
Send transactional email through a developer-focused API and SMTP relay
Transactional email
Send automatic messages triggered by user actions or account events, such as receipts and confirmations.
Mailyte
Business inboxes and application email in one platform
FutureMail
Custom-domain email for people and their agents
AutoSend
Manage transactional email, campaigns, and automated sequences together
Loops
Manage your product emails in one place.