Independent · sourced · Updated June 2026
Best Email Deliverability (2026)
The cheapest email deliverability is Folderly at $0/mo. 3 offer a free tier (Folderly, GlockApps, Mailtrap). This page compares 8 options on entry price, free tier, HIPAA/SOC 2 and best-for — every figure linked to its source, updated June 2026.
8 options compared on price, free tier, compliance and fit — ranked cheapest-first. Every figure links to the vendor's own page and the date we captured it; quote-only tiers show “—”, never a guess.
Key takeaways
- Cheapest: Folderly at $0/mo (Inbox Insights - Free).
- Typical paid price: from $17/mo, median $54/mo, up to $1000/mo — across 8 with published pricing.
- Free tier: Folderly, GlockApps, Mailtrap.
- Tracked: 8 vendors, data current through 2026-06-18.
Comparison
| # | Email Deliverability | Entry price | Free | HIPAA | SOC 2 | Best for | Source |
|---|---|---|---|---|---|---|---|
| 1 | Folderly | $0/mo Inbox Insights - Free | Yes | — | — | B2B senders needing reputation building | folderly.com |
| 2 | GlockApps | $0/mo Free | Yes | — | — | inbox placement testing | glockapps.com |
| 3 | Mailtrap | $0/mo Email Sandbox - Free | Yes | — | Yes | developers | mailtrap.io |
| 4 | Warmbox | $19/mo Solo | No | — | — | solo senders | warmbox.ai |
| 5 | MailReach | $25/mo Email Warmer (entry, per mailbox) | No | — | — | agencies managing multiple client inboxes | mailreach.co |
| 6 | Warmy | $49/mo Starter | No | — | — | cold email senders | capterra.com |
| 7 | Allegrow | $99/mo Starter | No | — | Yes | GTM teams | allegrow.co |
| 8 | MailMonitor | $1000/mo The Deliverability Foundation | No | — | — | enterprise senders | mailmonitor.com |
Prices are the lowest published self-serve monthly rate as captured on the linked source. Annual-billing and usage details are on each vendor's record in our open dataset.
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Frequently asked questions
What is the cheapest email deliverability?
Folderly has the lowest published entry price at $0/mo (Inbox Insights - Free), as of 2026-06-18.
How much does email deliverability cost per month?
Across the 8 email deliverability with published paid pricing, the median starting price is $54/mo, ranging from $17/mo to $1000/mo, as of 2026-06-18. 3 also offer a free tier.
Which email deliverability have a free plan?
Folderly, GlockApps, Mailtrap offer a free tier.
More software comparisons
How we compiled this
Official pricing pages were re-fetched via WebFetch on 2026-06-18 for all eight vendors: warmbox.ai/pricing, mailreach.co/pricing, folderly.com/pricing, warmy.io/pricing, glockapps.com/pricing, mailtrap.io/pricing, allegrow.co/pricing, mailmonitor.com/pricing. Warmy.io hides dollar amounts behind a demo/trial wall (page shows only B2B/B2C/Custom 'volume based pricing'); prices were cross-referenced from Capterra (capterra.com/p/234882/Warmy) which lists Starter $49, Business $129, Premium $189, Expert $279. MailReach base rate is $25/mailbox/mo for 1-5 inboxes, dropping to $19.50 at the 6-20 inbox volume tier; 20 spam-test credits are bundled FREE with the warmer plan and standalone credits are pay-as-you-go (100 credits = $105, 200 = $210), so the prior 'Spam Tester - 20 credits @ $210' line was removed as inaccurate. Mailtrap's pricing and security/GDPR pages state SOC 2 Type II, ISO 27001 and GDPR but make NO HIPAA claim, so the prior hipaa:true was corrected to null. GlockApps monthly prices ($59/$99/$129) confirmed on the live page; annual billing is advertised as ~30% savings. All data accessed 2026-06-18.
Last verified 2026-06-18. We re-check published prices and compliance on a recurring cadence and update this page when they change.
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