SendLayer

SendLayer is a transactional sender focused on API and SMTP relay, domain authentication, logs, suppression management, bounce handling, blocklist monitoring, event webhooks, and analytics. Plans are simple but billed annually, and the entry plan is small at 1,000 emails per month.

At an early stage the deciding factors are what the free tier actually covers, what the first paid invoice looks like, and how much of a founding engineer's week the setup costs. Feature depth that only matters at a million sends a month is noise until it is not.

Against a waitlist, a launch announcement, onboarding email, and the first transactional sends, SendLayer covers developer experience and webhook coverage, and does not cover scheduling and SDK breadth. Whether that gap matters depends on how central those are to the build.

• Free tier: Free trial up to 200 emails
• Best published rate per 1,000: Tiers not published in comparable form
• Starts at: $5/mo billed annually for 1,000 emails/mo
• DX score: 6/10
• Deliverability: Transactional sender with authentication, active anti-spam, bounce handling, blocklist monitoring, and event-based webhooks. Public independent deliverability history is thinner than Postmark or SMTP2GO.
• Operating since: Not published
• Scheduling: No
• SDKs: None
• Webhooks: Yes

Transactional sender with authentication, active anti-spam, bounce handling, blocklist monitoring, and event-based webhooks. Public independent deliverability history is thinner than Postmark or SMTP2GO.

Small WordPress, app, or SaaS projects that need simple transactional delivery at low volume.

Teams that want monthly billing or large free-tier volume.