> ## Documentation Index > Fetch the complete documentation index at: https://docs.dealtoaster.io/llms.txt > Use this file to discover all available pages before exploring further. # Connect and manage mailboxes > Connect Gmail, Microsoft 365 or an SMTP mailbox, set its limits and sending window, and fix a mailbox that needs attention. DealToaster sends every email from a mailbox you connect, so replies arrive where you already work. This page shows how to connect one, set how much it sends and when, and keep it healthy. ## Choose how to connect Open **Mailboxes**. With no mailbox yet the page shows the choices as buttons. Once you have one, the **Connect mailbox** menu in the page header offers them. | Choice | Use it for | | - | - | | **Connect with Google** (**Google or Gmail** in the menu) | Gmail and Google Workspace. DealToaster asks Google for permission to send. | | **Gmail with an app password** | Gmail or Google Workspace when you also want replies detected: one app password sends and detects replies, with no Google consent screen. | | **Connect with Microsoft** (**Microsoft 365 or Outlook** in the menu) | Microsoft 365 and Outlook.com. | | **Connect with SMTP** (**Other, with SMTP** in the menu) | Any mailbox that offers SMTP, such as Zoho Mail, Fastmail or your own server. | ## Connect with Google or Microsoft **1. Start the connection** Select **Connect with Google** or **Connect with Microsoft**. The provider's consent screen opens. **2. Allow the permissions** Keep every permission on the consent screen. The connection must be finished within 10 minutes, in the same browser where you started it. **3. Land on the mailbox page** When it works, DealToaster opens the mailbox page. Connecting an address that is already connected reconnects it instead of adding a second copy. If the connection fails, the **Mailboxes** page shows why: | Message | What to do | | - | - | | **The connect expired.** | Connect again. It took longer than 10 minutes, or started in another browser or session. | | **The mailbox was not connected.** | The consent screen was cancelled. Connect again and allow what DealToaster asks for. | | **A permission was not allowed.** | Connect again and keep every permission on the consent screen. | | **The address is not verified.** | Verify the address with the provider, then connect again. | | **This address is already connected.** | It is connected through another provider or another Microsoft account. Disconnect that mailbox first. | | **The provider did not confirm the connect.** | Try again in a minute. | | **Your Microsoft admin needs to approve DealToaster.** | Your organisation lets only an administrator approve new apps. Ask your Microsoft 365 admin to grant DealToaster access to send and read mail, then connect again. | ## Connect with SMTP and IMAP **1. Pick a preset** Select **Connect with SMTP**. The presets are Gmail app password, Zoho Mail, Fastmail and Custom; the first three fill in the server and show a hint for that provider; **Custom** fills in nothing, so you enter the server yourself. **2. Fill in the sending server** Enter the **Email address**, **Display name**, **Server**, **Port**, **Security**, **User name** and **Password** of your outgoing server. **3. Add IMAP settings to detect replies** Tick **Add IMAP settings** and fill in the **IMAP server**, **IMAP port**, **IMAP security** and either tick **Use the SMTP user name and password** or enter a separate **IMAP user name** and **IMAP password**. Without IMAP, DealToaster cannot see replies, so follow-ups do not stop when a contact answers. **4. Connect** Select **Connect**. DealToaster tests the connection. If the test fails for a new address, the mailbox is still saved with a warning ("Mailbox saved, but the connection test failed."), and it sends nothing until you fix the settings with **Edit SMTP settings**. You can add or change the IMAP settings later with **Add IMAP settings** or **Edit IMAP settings** on the mailbox page. Reply detection starts from that moment. ## Detect replies on a Gmail mailbox A Gmail mailbox connected with **Connect with Google** sends your emails but cannot see replies. It shows the warning **No reply detection: follow-ups will not stop on replies.** with **Add app password**. An app password lets DealToaster read replies while Google keeps sending the emails. **1. Create an app password** Turn on 2-Step Verification in your Google account, then select **Create an app password** on the app password page and create one for DealToaster. Your normal Google password does not work here. **2. Paste and test it** Paste it into **App password** and select **Test and save**. DealToaster tests the password before it saves it. It opens the inbox read-only and reads the headers of new messages to find replies, plus the start of the text of a reply and of a message that may be a bounce; nothing is marked as read. If Google refuses it, the page says "Google refused the app password." If the mailbox has already sent emails, DealToaster reads back the last 7 days of replies. Earlier replies are not seen, so check older ones by hand. In the list on **Mailboxes**, each mailbox card shows **Reply detection** as **On**, **Off** or **Failing**; the mailbox page explains how replies are read. **Change app password** replaces the password, and **Remove** (after **Remove the app password?**) stops reply detection without affecting how Google sends your emails. If Google revokes the password, for example after you change your Google password, the mailbox shows **Enter a new app password**. ## Set limits and the sending window Open a mailbox to change its settings, then save them. | Setting | What it does | Default for a new mailbox | | - | - | - | | **Display name** | The sender name your contacts see. | | | **Daily limit** | The most emails the mailbox sends in a day, from 1 to 200. Test emails count. | 50 | | **Minimum gap (seconds)** | The wait between two emails, from 30 to 3600. Up to 50% is added at random. | 90 | | **Start** and **End** of the sending window | Sends go out only inside this window, in the mailbox's time zone. Every sequence that uses the mailbox stays inside it too. The window cannot run overnight. | 09:00 to 17:00 | | **Working days** | The days sends may go out. Choose at least one. | Monday to Friday | | **Time zone** | The zone of the window and of the daily limit's day. | Your time zone | | **Signature** | Added to your emails. At most 10 KB. | None | The mailbox page also shows **Sent today** against the daily limit. A sequence has its own window and working days; an email goes out only where the two windows overlap. ## Check your domain For mailboxes on your own domain, the mailbox page shows **Domain authentication**, and the mailbox card shows a badge: a badge that reads **Domain authenticated**, **Domain warnings**, **Domain not authenticated** or **Domain check incomplete**. It looks at the MX, SPF, DKIM and DMARC records that tell receivers mail from your address is really yours. Warnings never stop sending. After you change a DNS record, it can take a while before every resolver sees it. For consumer domains such as gmail.com the page says there is nothing to set up, and the card has no badge. ## Pause and resume a mailbox Select **Pause** on the mailbox page to stop sending from it. The page shows **Sending is paused.** Scheduled sends wait, and go out within the limits after you select **Resume sending**. ## Fix an authorization error When a provider refuses the mailbox's sign-in, the mailbox shows **Reconnect needed**, DealToaster sends you a notification, and sends are on hold. Scheduled sends stay scheduled and go out after you fix it: * A Google or Microsoft mailbox: open the **More actions** menu and select **Reconnect with Google** or **Reconnect with Microsoft**. * An SMTP mailbox: open the **More actions** menu and select **Edit SMTP settings**, and update the password or server. If the IMAP sign-in failed, **Update the IMAP settings** opens the IMAP form. * A Gmail mailbox whose app password stopped working: select **Enter a new app password**. The banner on the mailbox page has the matching button: **Reconnect**, **Update the password**, **Update the IMAP settings** or **Enter a new app password**. Use **Test connection** on the mailbox page to check it. ## Disconnect a mailbox Open the **More actions** menu of the mailbox page, select **Disconnect** and confirm with **Disconnect mailbox**. Nothing is sent from the mailbox any more and its stored sign-in is deleted. DealToaster refuses while an active or paused sequence uses the mailbox ("A sequence uses this mailbox."): archive or delete those sequences first. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.