MailSlurp adds $0.01/credit email warmup usage rate + 1 more change
What happened
Between the Sep 28, 2026 and Oct 5, 2026 captures of MailSlurp's pricing page, Pulse recorded 2 changes: New Email warmup usage metered rate added to Usage rates (Pro & Growth) at $0.01/credit; controlled sends use 2 credits/recipient, provider checkpoint sends use 10. Growth plan inbox placement testing now includes Premium placement providers included. In detail: New 'Email warmup usage' metered rate added to Usage rates (Pro & Growth): $0.01/credit; controlled sends use 2 credits/recipient, provider checkpoint sends use 10; Growth plan's inbox placement testing now includes 'Premium placement providers included' alongside existing placement test allowance. Pulse files it as a packaging change (new add-on, feature added) with an upward direction. Pulse's latest capture (Oct 12, 2026) lists Starter at $19.17, Pro at $45.83, Growth at $116.67, Inbox placement at $1 per test and Device rendering at $0.5 per render.
It lands 14 days after MailSlurp's previous change, "MailSlurp adds AI token disclosures and email warm-up as usage caps quietly c" (Sep 21, 2026). Before that Pulse recorded "MailSlurp kills paid trials for Pro and Team, points users to Free plan" (Sep 7, 2026) and "MailSlurp: Free & Phone number capacity increased" (Aug 31, 2026). MailSlurp has been tracked since 2026-02-28.
In the same window HubSpot and Klaviyo also changed their Software Development & Testing pricing pages. Those moves are listed further down, and the Pulse Agent can compare them side by side.
- Pro, Growth · Add-onAdded
BeforeNot listed
After'Email warmup usage' metered rate
- Growth, Inbox placement · FeatureFeature added
Growth plan's inbox placement testing now includes 'Premium placement providers included' alongside existing placement test allowance
| Plan | Field | Before | After | Change |
|---|---|---|---|---|
| Pro, Growth | Add-on | Not listed | 'Email warmup usage' metered rate | Added |
| Growth, Inbox placement | Feature | Growth plan's inbox placement testing now includes 'Premium placement providers included' alongside existing placement test allowance | Feature added | |
Values as written on MailSlurp's public pricing page in the two captures Pulse compared; where the page states no number, the cells give the wording before and after.
Evidence
The two captures Pulse comparedFull-page captures of MailSlurp's pricing page (mailslurp.com) from Sep 28, 2026 and Oct 5, 2026; the change is marked around the middle of the page, where 'Email warmup usage' metered rate now appears.
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The two full-page captures with this change marked up are free with an account.
MailSlurp, the last 90 days
Full history- Oct 12, 2026improvedMailSlurp adds inbox placement testing to all plans, gates warmup to top tiers
- Oct 5, 2026packagingMailSlurp adds $0.01/credit email warmup usage rate + 1 more change · this change
- Sep 21, 2026packagingMailSlurp adds AI token disclosures and email warm-up as usage caps quietly c...
- Sep 7, 2026improvedMailSlurp kills paid trials for Pro and Team, points users to Free plan
- Aug 31, 2026improvedMailSlurp: Free & Phone number capacity increased
Across Software Development & Testing in the same window
All Software Development & Testing changes- HubSpotSep 21HubSpot Service Enterprise drops AI transcript enrichment from Enterprise plan
- KlaviyoSep 9Klaviyo swaps free Composer credits for $5 usage cap, adds AI Helpdesk
- HubSpotSep 21HubSpot Marketing Starter gains Agent Hub, Agent Builder, Data Agent as Pro d...
- HubSpotSep 21HubSpot Marketing Enterprise adds Content and Nurture AI agents in BETA
- HubSpotSep 21HubSpot Sales Enterprise swaps AI transcript enrichment for standard sandbox ...
Questions about this change
Did MailSlurp raise prices in October 2026?
No list-price increase was recorded between Sep 28, 2026 and Oct 5, 2026. The change Pulse detected was a packaging change: new add-on, feature added.
What changed on MailSlurp's pricing page between Sep 28, 2026 and Oct 5, 2026?
Pro, Growth add-on: Not listed → 'Email warmup usage' metered rate, added; Growth plan's inbox placement testing now includes 'Premium placement providers included' alongside existing placement test allowance. Pulse compared the captures it took on Sep 28, 2026 and Oct 5, 2026; the before/after table above lists each item as written on the page.
How often does MailSlurp change its pricing?
Pulse recorded 3 other pricing-page changes for MailSlurp in the 90 days before this one; the previous change was "MailSlurp adds AI token disclosures and email warm-up as usage caps quietly c..." on Sep 21, 2026; MailSlurp has been tracked since 2026-02-28.