Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
Free
One server, in email. Free email deliverability tools: SPF, DKIM, DMARC, blacklist and header checks, cold email scoring.
1
server published
1 category
—
installs
across every listing
0
followers
told when a release lands
1 of 1
tool-list graded
graded from the tools they list, not from code
1 MCP server. 1 of 1 is free to start.
Authentication
0 of 1 use OAuth
The rest either hold an API key issued by the publisher or ask for nothing.
Support
Community publisher
Listed without a verification tick. Read the listing before installing.