Product
Postie is built for people who run several accounts and lose time to logins, passwords and scattered inboxes. Here is what it does, in the order you will meet it.
Connect
Sign in once per account
Gmail, Zoho and Microsoft 365 connect in a few clicks. IMAP takes an address and a password. Postie keeps each session alive so you never re-sign in.
Read
One list, every account
Threads from all accounts sit in one list, each marked with the account it came from. Filter to one account when you need to; most days you will not.
Act
Keyboard, voice or agent
Every action has a key. Every action has a phrase. And every action is an API call, so an agent can do it while you are elsewhere.
API first
Everything the app does, the API does. Give Claude Code or Codex a key and a rule, and it works the inbox on your terms: archive the noise, draft the routine replies, leave the rest for you.
Read the API referencecurl https://api.postie.[DOMAIN]/v1/threads/search \
-H "Authorization: Bearer $POSTIE_KEY" \
-d '{ "accounts": ["studio", "work"],
"query": "from:dhl newer_than:1d",
"then": "archive" }'
{ "matched": 12, "archived": 12, "took_ms": 38 }