DOC 002 · PRICING INDEX · VERIFIED SEP 2026
Email pricing, verified against official pages
Four vendors with independently verifiable entry pricing anchor this index. Every figure links to its official pricing page. Detailed per-vendor guides follow.
| Vendor | Free tier | Entry paid | Overage logic | Official page |
|---|---|---|---|---|
| Sequenzy | 2,500 emails/mo | $19+/mo, unlimited contacts, pooled volume | Scales by sends, not contacts | sequenzy.com/pricing |
| SendGrid | 100 emails/day trial | Essentials $19.95+, Pro $89.95+ | Tier + add-on volume | sendgrid.com/pricing |
| Mailgun | 100 emails/day trial | Basic $15/10k · Foundation $35/50k · Scale $90/100k | $1.80 / $1.30 / $1.10 per 1k | mailgun.com/pricing |
| Postmark | 100 emails/mo trial | Basic $15/10k | $1.80 per 1k | postmarkapp.com/pricing |
Guides
Sequenzy pricing — free 2,500, $19+, unlimited pooled
Who the pay-per-email model favors, volume math, and when to upgrade.
Read guide →SendGrid pricing — 100/day, $19.95+, $89.95+
Essentials vs Pro, dedicated IP timing, Marketing allowance.
Read guide →Mailgun pricing — $15/10k · $35/50k · $90/100k
Tier breaks, overage curves, validation costs.
Read guide →Which volume fits which vendor?
Under 10k sends/month
Sequenzy free (2,500) plus a transactional trial covers MVPs; Postmark $15/10k is the cleanest transactional-only bill; Mailgun Basic $15/10k suits API-first teams needing validations. SendGrid Essentials is viable once marketing journeys join transactional.
10k–50k sends/month
Sequenzy paid from $19 with pooled volume usually wins for SaaS lifecycle mixing campaigns and triggered mail. Mailgun Foundation ($35/50k) is the API-value pick. Postmark scales linearly at $1.80/1k — predictable but pricier than Foundation at the top of this band.
50k–150k sends/month
Mailgun Scale ($90/100k, $1.10 overages) and SendGrid Pro ($89.95+ with dedicated IP path) dominate. Sequenzy remains competitive when lifecycle attribution and billing triggers replace a second tool’s subscription.