Live SMTP checks that an email address exists before you send to it. Your client pastes their Sniffmail key once, and your agent or your code works with their access.
Email
About Sniffmail
Through Operate As, your agent, n8n workflow or code works in Sniffmail with your client's own access. Your client pastes their API key from Sniffmail once. We store it encrypted, so it never sits in an email or a shared doc. Your agent reaches any endpoint of Sniffmail's API through the request tool, with the client's access attached.
Common uses in Email
Triage the inbox and draft replies for review
Follow up on leads and unanswered threads
Send updates and confirmations as they happen
Sniffmail
Sniffmail · Email
API key
Live SMTP checks that an email address exists before you send to it
The client pastes their API key from Sniffmail's settings. We store it encrypted.
Tested against Sniffmail's live API.
Building with Sniffmail? The docs have setup steps and code for every tool.
Add a client, select the services, copy the link. You'll get an email the moment their access is ready. Start free, no card required. Paid plans are one flat monthly price, and a busy month never takes your agents offline.