ColdSend lets you use your native inboxes outside the platform — whether you need a quick CSV backup of credentials or want to connect individual inboxes to external sequencers via SMTP.

There are two ways to export:

1. Bulk Export (CSV) — Download credentials for multiple inboxes at once
2. SMTP Export — Generate relay credentials for an inbox to use in an external sequencer

Method 1: Bulk Export to CSV

Use this when you want to download a spreadsheet of inbox credentials (email, password, SMTP/IMAP settings) for multiple inboxes at once.

Step 1: Go to Sender Accounts

1. In the left sidebar, click Sender Accounts
2. You’ll see your inboxes grouped by domain

Step 2: Select Inboxes

1. Expand the domain group you want to export from
2. Use the checkboxes to select individual inboxes, or use the checkbox in the table header to select all on the current page

Step 3: Export

1. Click the Actions button (it becomes active once you’ve selected at least one inbox)
2. Click Export
3. A CSV file will download automatically

What’s in the CSV?

Tip: This CSV is ready to import into most sequencers that accept bulk SMTP account uploads.

Method 2: SMTP Export (Per-Inbox Relay Credentials)

Use this when you want to connect a specific ColdSend inbox to an external sequencer like Instantly, Smartlead, or any SMTP-compatible tool. This generates separate relay credentials — your original mailbox password is never shared.

Prerequisites

• The inbox must be a ColdSend native inbox (not Google Workspace, Outlook, or Custom SMTP)
• The inbox must have an Active status

Step 1: Enable SMTP Export

1. Go to Email Accounts
2. Find the inbox you want to export
3. Click the three-dot menu (⋮) on the right side of the inbox row
4. Click Enable SMTP Export

Step 2: Save Your Credentials

After enabling, you’ll see a dialog with your SMTP credentials:

⚠️ Important: Save the password immediately — it is shown only once and cannot be retrieved later. If you lose it, you’ll need to regenerate a new one.

Use the copy buttons next to each field to copy values to your clipboard.

Step 3: Connect to Your Sequencer

Instantly

1. Go to Accounts → Add Email Account → SMTP
2. Enter the credentials from Step 2
3. Set encryption to STARTTLS
4. Save and verify the connection

Smartlead

1. Go to Email Accounts → Add Account → SMTP/IMAP
2. Fill in the SMTP fields with the credentials from Step 2
3. For IMAP (if needed for reply tracking), use:
   • IMAP Host: mail.coldsend.pro
   • IMAP Port: 993
   • Security: SSL/TLS
   • Username: your inbox email address
   • Password: your original mailbox password (from the bulk CSV export)
4. Save and test

Other Sequencers / Email Clients

For any tool that supports custom SMTP, use these settings:

• Server: smtp.coldsend.pro
• Port: 587
• Encryption: STARTTLS
• Authentication: Username + Password (from SMTP Export)

Managing SMTP Export

Once SMTP Export is enabled for an inbox, you can manage it anytime:

1. Click the three-dot menu (⋮) on the inbox row
2. Click SMTP Export Settings

From there you can:

• Regenerate Password — Creates a new password (invalidates the old one)
• Disable Export — Turns off SMTP relay access entirely

Daily Limits

• SMTP Export has a default daily limit of 50 emails/day per inbox
• This limit is shared with ColdSend campaigns — emails sent via SMTP Export count toward the same hourly quota
• Contact support if you need to adjust the limit

Troubleshooting

Security Notes

• SMTP Export passwords are separate from your mailbox passwords — disabling SMTP Export does not affect normal inbox operation
• Passwords are hashed on our end and cannot be retrieved after the initial display
• We recommend regenerating passwords periodically for security
• Bulk CSV exports contain decrypted mailbox passwords — store the file securely and delete it after use