Your Mailbox
Connect your own mailbox and the emails Knock Knock App sends to your leads come from your address instead of ours — so replies land straight in your inbox. It works with Gmail / Google Workspace, Outlook / Microsoft 365, Yahoo, iCloud, Zoho, or any provider that offers SMTP.
Your mailbox can be used for:
- Agent K outreach — when you choose to send Agent K's emails from your mailbox, or when you have no CRM at all (see Agent K emails from your mailbox).
- Visitor follow-up emails — the "resume your conversation" email to visitors who leave a chat.
- Tapi work orders — the Tapi setup can read work-order emails from this mailbox instead of asking for a second login.
Connecting
- Go to Integrations in the sidebar and find Your Mailbox under Messaging & email.
- Click Connect mailbox.
- Pick your Email provider. The window shows how to get that provider's details — for most providers that means creating an app password (you'll need 2-step verification on the account), not your normal password.
- Enter your Email address, an optional Sender name (blank uses your company name), and paste the app password.
- Click Connect. Knock Knock App verifies the login before saving it; the password is stored encrypted.
The server settings are filled in for the listed providers — Show server settings to change them. For Other / Custom, enter the SMTP host (usually port 587, or 465 for SSL) and, to read email, the IMAP host (usually 993). IMAP is optional, but without it replies can't be tracked and Tapi can't read the mailbox.
IMAP and SMTP AUTH must be enabled for the mailbox. Microsoft 365 switches SMTP app passwords off by default from the end of December 2026 — your admin can turn them back on.
The Mailbox Card
Once connected, the card shows the address, whether it's Sending + reading or Sending only, what it's Used for, and Sent today against your daily limit. From the card:
- Configure — the mailbox settings below.
- Send test — sends a test email from the mailbox to your own login address.
- Reconnect — re-enter the login, for example after changing the app password. Your settings are kept.
- Disconnect — lead emails go out from our address again (and Tapi stops reading, if it used this mailbox).
If the login stops working, the card shows Mailbox problem with the reason. Until you reconnect, visitor follow-up emails go out from our address; Agent K's emails never do — see below.
Mailbox Settings
Use this mailbox for
- Agent K outreach — lets Agent K email leads from this address. Which leads it emails from here is set in Agent K settings → hand-off; with no CRM connected it's used automatically.
- Visitor follow-up emails — the "resume your conversation" email.
- Tapi work orders — set up from the Tapi card.
Sending
- Sender name — shown as the sender.
- Reply-to address — optional; where replies go if not this mailbox. Replies sent elsewhere aren't seen by reply tracking.
- BCC every email to — optional; keep a copy of everything sent, for example in a shared inbox.
- Daily sending limit — 1 to 2,000 (default 100), across every use. Gmail allows about 500 a day, Google Workspace and Microsoft 365 about 2,000 — staying well under protects deliverability. Once the limit is reached, further emails fail with "Your mailbox's daily limit of … emails is reached" until the next day.
Replies
- Track replies — needs reading access (IMAP). The inbox is checked every few minutes: a reply stops Agent K's follow-ups, and an unsubscribe request or bounce stops all email to that person. Only replies from leads emailed from this mailbox are read — the rest of your inbox is ignored, and after a reconnect only new mail is read.
Agent K Emails From Your Mailbox
When Agent K sends from your mailbox:
- Every email carries an Unsubscribe link (and a one-click unsubscribe header mail apps understand). Someone who unsubscribes goes on Agent K's Do-not-contact list and nothing more is sent to them.
- Follow-ups thread onto the earlier email ("Re: …"), and answer the lead's own reply when they wrote back.
- A lead's whole sequence goes out the way its first email did.
- Agent K's emails never fall back to our address. If the mailbox can't send — a login problem, the daily limit, or the mailbox switched off for Agent K — the email fails and the Feed shows why. While the mailbox has a problem, new LeadConnector leads are delivered for your own workflows to send instead.
- With no CRM connected, leads stay in Agent K — there's nothing to push to — and every email goes out from your mailbox.
Next Steps
- Agent K — choose the CRM and the sender under Outreach → How Agent K hands off leads.
- Integrations Overview