Send your issue to a test address and see where it landed at twelve mailbox providers, inbox or spam. The same report runs 42 technical checks on the copy that arrived: SPF, DKIM and DMARC alignment, blocklists, two spam engines, the Gmail and Yahoo bulk sender rules, and the content itself. Every problem comes with a plain-language fix. Free, no signup, with an API and an MCP server if you want to test from a script or an AI agent.
MailerDot automatically generates and delivers daily local news digests for your city. Operators hold an exclusive town territory, receive top-of-newsletter spotlight placement to promote their own business, and earn 50% net revenue on every local event and business listing sold ($10–$25 flat per placement).
Price Comparison
MailerDot Operators starts at $10 for up to 1K . Pricing can go up to $25 for up to 4K .
Feature Comparison
Email Spam Tester and MailerDot Operators both have great feature sets so the right tool for you really depends on your needs.
| Features | Email Spam Tester | MailerDot Operators |
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