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Using your Master Inbox and connecting mailboxes to an email app

Why the dashboard has no built-in inbox view, and how to connect your Master Inbox (or any mailbox) to an email app like BlueMail to actually read your replies.

Maildoso does not have a built-in email viewer in the dashboard. To actually read the replies coming into your mailboxes, you connect your Master Inbox (or an individual mailbox) to a regular email app using IMAP — this guide explains how, plus what to check if the connection isn't working.

There is no inbox view inside the Maildoso dashboard

  • The Master Inbox page in your dashboard shows your Master Inbox address, its attached mailboxes, and connection settings (IMAP host, port, SMTP) — it does not display the actual emails. Clicking into it will not open a list of messages.

  • To read what's arriving in your Master Inbox, you need to connect it to an email client (see below) using those same IMAP/SMTP details.

Connecting your Master Inbox (or any mailbox) to an email app

  • Any IMAP-capable email app works — BlueMail, Outlook, Apple Mail, or a mobile mail app. We recommend BlueMail for the Master Inbox specifically.- Manyreach is also compatible with Maildoso IMAP/SMTP mailboxes. To configure, navigate to the settings section in Manyreach where mailbox configurations are managed.

  • BlueMail setup: Add account → Manual setup (not the quick-setup box) → select IMAP → enter the mailbox email + password.

  • Incoming (IMAP): the host shown on your dashboard/welcome email for that mailbox, port 993, encryption SSL/TLS. (IMAP hosts are specific to each mailbox — don't reuse one mailbox's IMAP host for another.)

  • Outgoing (SMTP): smtp.maildoso.com, port 587, encryption STARTTLS — this is the same for every mailbox on every account.

  • If you're not sure which IMAP host to use for a specific mailbox, contact us and we'll confirm it.- Avoid manually typing the IMAP host; copy it directly from the exported CSV file to ensure accuracy.

Which address a reply sends from

Once you're reading mail through your Master Inbox in an email app, it helps to know which address your reply actually goes out from — it isn't always the Master Inbox address itself:

  • A prospect replies to a specific mailbox, and you hit Reply or Reply All from the Master Inbox view — the reply is sent as that original mailbox, never as the Master Inbox.

  • A prospect's message was sent directly to your Master Inbox address, and you hit plain Reply — the reply goes out as the Master Inbox address itself. If you hit Reply All instead (or manually cc the mailbox), it sends as that mailbox.

  • You compose a new message with a mailbox address in the To: field — it sends as that mailbox, not the Master Inbox.

In short: whenever a specific mailbox is identifiable as the recipient or is cc'd, replies go out as that mailbox. Only a plain reply to a message sent straight to your Master Inbox address goes out as the Master Inbox itself.

Hiding warm-up emails from your Master Inbox

  • On the Master Inbox page in your dashboard, enable the warm-up filter tag so warm-up traffic is hidden from view and you only see real replies once connected in your email app. Full setup steps (including supported warmup tools and what to do if warmup mail still slips through): Warmup Filters.

  • This only works for @maildoso.email Master Inbox addresses, not custom-domain ones.

If you can't connect in your email app

  • Double-check for stray leading/trailing spaces in the email, password, host, or port fields — a common cause of failed connections.

  • Re-export the mailbox's credentials from the dashboard (Email Accounts → select → Export selected to CSV) rather than relying on details saved or copied earlier — they may be stale.

  • Confirm you're using IMAP (not POP) and the exact host/port/encryption combination above.- Use the full email address (e.g., user@example.com) as the IMAP username.

  • If your domain nameservers (NS) were recently changed or reverted, reconnect them to ensure proper DNS resolution. After reconnecting, download a new CSV file and re-upload the mailboxes.

  • In platforms like Instantly, if you see an error like "This account has already been added," it means the mailbox is already active in your workspace. Avoid adding it twice.

  • Still stuck? Contact us and we'll review your specific case.

Note: this page does not cover Google Workspace mailboxes — those don't use the Maildoso Master Inbox at all. See Forwarding Addresses / Master Inbox for how Google Workspace replies are handled instead.

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