About This Launch
MailboxWatch is a price tracker for cold email infrastructure. It compares 20 mailbox offerings from 17 providers, including Google, Microsoft and SMTP options, on one setup of 30 mailboxes on 10 domains. It has a calculator, a CSV download and a change log. Prices are checked weekly, and every change is logged.
The comparison is free to use. The newsletter is free too: one short email a week, with unsubscribe anytime. Some links on the site are affiliate links and are marked sponsored.
Why I Built This
Cold email mailbox pricing is scattered across many provider pages with different minimums and billing terms, so we built one place that compares them on the same setup and logs every price change.
Launch Details
CategoryMarketing
StageLive
ListedOctober 26, 2026