Mmcp.market

Head to head

Inbox Check — Email Deliverability Test vs Email Inbox API + Sending by Sendmux

Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.

Inbox Check — Email Deliverability Testio.github.live-direct-marketing/inbox-check
?
No reviews yet

Email inbox placement tests across Gmail, Outlook, Yahoo, Mail.ru, Yandex (SPF/DKIM/DMARC).

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Email Inbox API + Sending by Sendmuxio.github.Sendmux/sendmux-mcp
A
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AI email inbox and sending tools with attachments, search, live events, and webhooks.

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The short version

Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Email Inbox API + Sending by Sendmux is hosted and callable through the gateway; Inbox Check — Email Deliverability Test runs on your own machine. Email Inbox API + Sending by Sendmux has noticeably more public adoption.

 Inbox Check — Email Deliverability TestEmail Inbox API + Sending by Sendmux
User ratingNo reviews yetNo reviews yet
Safety grade?A96/100
Adoption—Growing
GitHub stars–65
Downloads / week––
Runs whereYour machine (local)Hosted (remote)
Gateway-readyNoYes
Tools——
Write actions——
Price per callFreeFree
Licence—MIT
Last release—2026-09-19
CategoryEmailEmail

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