Connect any inbox. Let every new email start the work.
Gmail, Microsoft 365 and IMAP on a hosted connect page, new mail as webhooks, replies from the user’s own address.
Free tier: 3 mailboxes, Inbound webhooks, Your own Google and Microsoft apps. No card.
Mailboxes
- [email protected]GoogleConnected
- [email protected]Microsoft 365Connected
- [email protected]IMAPConnected
Re: Your showing on Saturday
Saturday works. See you there.
What it does for you
Every inbox connected to the rest of your tools
Agents and clients connect Gmail, Microsoft 365 or any IMAP mailbox on a hosted page. Each new email can start a workflow, and replies go out from their own address.
Platforms and brokerages
Put a “Connect your mailbox” button in your product. The connect page runs on your own Google and Microsoft apps, so the consent screen shows your app’s name.
Read the full guideDevelopers and CTOs
A Nylas v3-compatible API: grants, messages, drafts, send, and webhooks signed with HMAC-SHA256. An existing Nylas integration switches by changing three values.
Read the full guideAgents and loan officers
Connect your Gmail or Outlook once. A reply from a lead can update your CRM or start a Zap, and follow-ups go out from your own address, not a no-reply.
Read the full guide
Take the tour
Mail in three steps
Hosted connect page with your own Google and Microsoft apps, inbound webhooks, a send API in the Nylas v3 format.
Step 1 of 3. Example data.
What Mail does
Connect Gmail and Microsoft 365 mailboxes through one API: inbound webhooks, send on behalf.
Hosted sign-in for Google and Microsoft
Send your user to the sign-in page; they approve access with Google or Microsoft, and you get a grant id back. IMAP works too.
Send as your user
One call sends from the user’s own address, with optional open and click tracking from Hobby.
New mail arrives as a webhook
message.created, thread.replied, message.bounce_detected and the tracking events post to your endpoint, signed with HMAC-SHA256.
For developers
Every request takes an account API key: Authorization: Bearer sy_live_…. Keys can be limited to Mail.
Send on behalf of a grant
A grant is one connected mailbox. Send with an account API key; the message goes out from the grant’s own address.
curl -X POST https://api.syncyak.com/v3/grants/$GRANT_ID/messages/send \
-H "Authorization: Bearer $SYNCYAK_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": [{ "email": "[email protected]", "name": "Sam" }],
"subject": "Your showing on Saturday",
"body": "<p>See you at 10am at 42 Harbor Road.</p>",
"tracking_options": { "opens": true, "links": true }
}'Receive webhooks
Each delivery is a JSON event. Check the X-Nylas-Signature header: the hex HMAC-SHA256 of the body with your webhook secret.
{
"specversion": "1.0",
"type": "message.created",
"id": "5f0c…",
"time": 1790000000,
"data": {
"grant_id": "b1e4…",
"object": {
"id": "18c2…",
"subject": "Re: Your showing on Saturday",
"from": [{ "email": "[email protected]", "name": "Sam" }],
"snippet": "Saturday works. See you there."
}
}
}More in the Mail docs.
Mail plans
Prices per month in US dollars. Mix this tier with any tier of the other products.
or $120 a year
- 10 mailboxes
- Open and click tracking
- 30-day message history
or $1,990 a year
- 250 mailboxes
- 1M sends a month
- 1-year message history
Compare every Mail limit
| Limit | Free | Hobby | Pro | Business | Enterprise |
|---|---|---|---|---|---|
| Mailboxes | 3 | 10 | 50 | 250 | Unlimited |
| Messages sent a month | 1,000 | 20,000 | 150,000 | 1,000,000 | Unlimited |
| Message history | 7 days | 30 days | 90 days | 1 year | 2 years |
| Webhook endpoints | 1 | 3 | 10 | 25 | Unlimited |
| Open and click tracking | Not included | Included | Included | Included | Included |
| IMAP and SMTP mailboxes | Included | Included | Included | Included | Included |
Questions about Mail
Something else? Write to [email protected] and a person answers.
Which mailboxes can connect?
Gmail and Google Workspace, Microsoft 365 and Outlook, Yahoo, and any mailbox that offers IMAP and SMTP with an app password. The connect page detects the provider from the address.
Do I need my own Google or Microsoft app?
For one-click sign-in with Google or Microsoft, yes: you register your app once and paste its client ID and secret, so your users see your name and you keep the relationship. Without one, people connect with an app password over IMAP.
I already use Nylas. How much changes?
The request and webhook formats are Nylas v3’s. Change the API host, the client ID and the secret; your code stays as it is.
How many mailboxes and sends do I get?
Free connects 3 mailboxes and sends 1,000 messages a month. Hobby connects 10, Business 250. Extra mailboxes are an add-on.
Start with Mail on the free tier
3 mailboxes, Inbound webhooks, Your own Google and Microsoft apps, free every month. Add the other products when you need them, on the same account.
Free tier on every product. No card.