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Mailwarm (YC S20) — Prevents your emails from landing in spam

Mailwarm is the email deliverability company. We help senders get into the inbox and stay there, through products, tools, and services built for both humans and AI agents. ✦ Mailwarm.com: The original email warmup tool.

Mailwarm is a Y Combinator company in the Summer 2020 batch. Its directory entry describes it as: Prevents your emails from landing in spam. The founder listed is Amine Benjelloun (Founder) (Y Combinator directory entry, September 10, 2020).

6 more companies from YC Summer 2020 ↓

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Mailwarm

New accelerator entry · 2020-09-10 · the record

Summer 2020
batch
10
people
Early
stage
United Arab Emirates
region
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What the record says

BatchSummer 2020
Announced2020-09-10
StageEarly
StatusActive
Team size10
IndustryB2B
Sub-industryB2B -> Sales
SectorsSaaS, B2B, Marketing, Email
RegionsUnited Arab Emirates, Middle East and North Africa, Remote, Partly Remote
BasedDubai, Dubai, United Arab Emirates
HiringNo
Sitehttps://www.mailwarm.com
Founded2020

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Also in YC Summer 2020

Same batch, B2B first.

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In their words

Mailwarm is the email deliverability company. We help senders get into the inbox and stay there, through products, tools, and services built for both humans and AI agents. ✦ Mailwarm.com: The original email warmup tool. Build sender reputation automatically through real, positive inbox interactions across a large network of mailboxes, with built-in monitoring and deliverability insights. ✦ ThemailX.com: Instant deliverability diagnostics for AI agents and humans. Check all protocols SPF, DKIM, DMARC, Inbox placement and more via MCP, API, or web. Get specific fixes and actions, not just scores. ✦ Mailadept.com: Email deliverability on autopilot. A subscription-based, AI-native service where agents and deliverability experts collaborate to audit your setup, fix issues, and monitor inbox placement continuously. Build reputation with Mailwarm, diagnose problems with themailX, fix and maintain with mailadept. Doing email marketing or cold outreach? Book a call through mailadept.com, we'll show you which one fits.

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Example from a real report (our sample on Target): “Target eliminated approximately 1,800 corporate positions, with around 1,000 employees receiving layoff notices and the remainder accounted for by eliminating open roles.” Source: NBC News

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What the Full Report on Mailwarm covers

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  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

    1 cited source found

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Mailwarm: Accepted into Y Combinator Summer 2020
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Permanent URL: https://mentionfox.com/funding/yc-mailwarm
Last updated 2026-10-27
Primary record: Y Combinator directory entry
Mailwarm (YC S20) — Prevents your emails from landing in spam. MentionFox, 2026-10-27. https://mentionfox.com/funding/yc-mailwarm