Mail-Tester alternatives
Providers that compete with Mail-Tester on at least one of: Deliverability
Simple send-to-test-address spam score checks.
Switching as teams choosing a transactional API
Judged purely as an API. What the request contract guarantees on retry, how complete the webhook event coverage is, whether suppressions are readable and writable programmatically, and how much the message log retains when something needs debugging in production.
Mail-Tester does not cover idempotency keys, webhook coverage, event stream, the suppressions API, batch sending, and SDK breadth. MailReach, Postmark DMARC, and EasyDMARC close that gap. The order below weighs this audience's priorities first, so it differs from a general popularity ranking.
ranked for teams choosing a transactional API
- 01
MailReach
DeliverabilityEmail warmup plus spam testing for outbound teams.
Adds webhook coverage and event stream over Mail-Tester, with nothing given up on these priorities.
No permanent free plan published · $19.50/mailbox/mo shown in the published pricing calculator - 02
Postmark DMARC
DeliverabilityFree weekly DMARC digests, plus a paid DMARC Digests upgrade.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
Free weekly DMARC monitoring with top sources and 7 days of history · $14/mo per domain for DMARC Digests - 03
EasyDMARC
DeliverabilityDMARC, SPF, DKIM, BIMI, and deliverability monitoring.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
Free plan with 1 domain, 1,000 emails/mo, and 14 days of history · EUR 35.99/mo billed annually for Plus - 04
dmarcian
DeliverabilityDMARC management from one of the category specialists.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
Personal plan for non-business use, up to 2 active domains and 1,250 DMARC-capable messages/mo · $24/mo for Basic, or $19.99/mo billed yearly - 05
GlockApps
DeliverabilityInbox placement testing plus DMARC analytics.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
Free plan with 2 Inbox Insight tests once and 10,000 DMARC messages/mo · $59/mo billed annually for Essential - 06
TrulyInbox
DeliverabilityWarmup priced by daily emails instead of connected accounts.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
Free forever for 1 account and 10 warmup emails/day · $29/mo monthly, or $22/mo billed annually for Starter - 07
MXToolbox
DeliverabilityBlacklist, DNS, DMARC, and delivery monitoring tools.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
Free plan with 1 weekly blacklist monitor for 1 domain · $129/mo for Delivery Center with 5 domains and 500,000 message volume - 08
Warmy
DeliverabilityEmail warmup and deliverability monitoring for sender reputation.
Adds event stream over Mail-Tester, with nothing given up on these priorities.
7-day trial, no credit card, 1 mailbox, 15 to 50 seed emails/day · Paid plan pricing is not exposed in accessible official pricing docs
Mail-Tester and its alternatives, side by side
Columns are the priorities teams choosing a transactional API weigh, in order. Mail-Tester is the first row so the trade in each direction is readable at a glance.
| Provider | Idempotency keys | Webhooks | Event stream | Operating since | Suppressions API | Best published rate per 1,000 | Batch sending | SDKs |
|---|---|---|---|---|---|---|---|---|
| Mail-Tester | No | No | No | Not published | No | Tiers not published in comparable form | No | None |
| MailReach | No | Yes | Yes | Not published | No | Tiers not published in comparable form | No | None |
| Postmark DMARC | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
| EasyDMARC | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
| dmarcian | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
| GlockApps | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
| TrulyInbox | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
| MXToolbox | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
| Warmy | No | No | Yes | Not published | No | Tiers not published in comparable form | No | None |
MailReach, Postmark DMARC, and EasyDMARC add capability without giving anything up on these priorities. The rest trade one thing for another.