SecureSMTP vs SendGrid
SendGrid is the biggest name in transactional email — massive infrastructure, sprawling feature set, complex pricing. SecureSMTP gives you the deliverability without the sales calls, credit-card-required trials, or per-seat billing.
Drop-in WordPress plugin + relay for everywhere else. Simple flat-rate pricing, free tier that actually covers a small site, and a UI you can navigate without a solutions engineer.
Enterprise-scale transactional + marketing API. Pricing starts free (100/day) then jumps to $19.95/mo. Deep dev tooling, but every WordPress integration is a plugin you install separately.
TL;DR
SendGrid is built for engineering teams that need every feature and can absorb the pricing complexity. SecureSMTP is built for owners of WordPress + form-driven sites who want reliable inbox delivery without becoming a deliverability expert.
If you need marketing broadcasts, contact lists, segmented campaigns — SendGrid has that stack. If you just need contact-form emails, order confirmations, and password resets to land in the inbox, SecureSMTP is faster to set up and cheaper to run.
Feature-by-feature
| Feature | SecureSMTP | SendGrid |
|---|---|---|
| WordPress plugin | ✓ Official plugin (zip upload in wp-admin) | Third-party plugins; official SMTP setup only |
| Free tier | ✓ 5,000 emails/mo (no card) | 100/day for 60 days, then paid |
| Starting paid plan | ✓ From $5/mo billed yearly | $19.95/mo (Essentials 50k) |
| SPF + DKIM + DMARC alignment | DKIM with one DNS record; SPF too in Advanced mode | Yes, self-serve DNS |
| Delivery dashboard | Included | Included |
| API-first workflows | REST API + webhooks | REST + SMTP + inbound parse |
| Marketing broadcasts | No (transactional only) | Yes |
| Contact-form spam filtering | ✓ AI + honeypot + rate limit | None built-in — you handle it |
| Support | Email + docs, no tier gates | Chat/phone on paid tiers only |
Pick SecureSMTP when
- You run WordPress / Shopify / Webflow and want plugin-based setup
- You want a real free tier — 5,000 emails/month, no card
- You care about contact-form spam protection out of the box
- You want simple flat-rate pricing, no volume tiers to navigate
Pick SendGrid when
- You send marketing broadcasts + segmented campaigns
- You have engineering resources to integrate SDKs
- You need Twilio-ecosystem features (SMS, voice, WhatsApp)
- You send > 500k emails/month and want volume pricing
Pricing at a glance
SendGrid Essentials starts at $19.95/mo for 50k emails. SecureSMTP Pro is $19/mo for 250k emails; the free tier covers 5,000/mo. Most WordPress site owners never leave our free plan.
FAQ
Is SecureSMTP a drop-in replacement for SendGrid on WordPress?+
What about SendGrid marketing campaigns?+
Can I migrate my sending domain from SendGrid?+
What's the biggest difference?+
Learn more
Ready to switch?
Free plan covers most sites. Setup takes a few minutes, plus DNS time. No credit card required.