📨 How to Connect Instantly with mySMTP Server

This step-by-step guide will help you integrate your mySMTP account with Instantly to start sending cold emails using your dedicated SMTP setup.

✅ Requirements

Before you begin, make sure you have:

• An active mySMTP account with a dedicated IP server
• Your SMTP credentials:
  • SMTP host (e.g., relayxx.mysmtp.com)
  • Username
  • Password
  • Port: 587
  • Encryption: TLS

🔧 Step-by-Step Setup in Instantly

1. Login to Instantly

Go to https://app.instantly.ai and sign in to your account.

2. Go to ‘Email Accounts’

• In the left menu, click on “Email Accounts”
• Click the “+ Add Email Account” button

3. Choose ‘Custom SMTP’

• In the provider list, scroll down and select “Other SMTP” or “Custom SMTP”

4. Enter SMTP Details from mySMTP

💡 Tip: The “From Email” should be from a domain that is properly authenticated with SPF, DKIM, and DMARC. You can manage this in your DNS panel using the instructions from your mySMTP dashboard.

5. Send Test Email

• Click “Send Test” to ensure the SMTP connection is successful.
• If successful, you’ll see a green confirmation.

6. Save the Account

• Click “Save & Continue”
• The SMTP account is now ready to be used for campaigns inside Instantly.

🔄 DNS Configuration Reminder

To maximize deliverability, make sure your sending domain has the following TXT records:

SPF

v=spf1 include:dedicated.mysmtp.com ~all

DKIM

Setup DKIM via the dashboard.mysmtp.com

DMARC

To setup basic DMARC record you can use this free wizard: https://dmarcian.com/dmarc-record-wizard/

🧪 Warm-up Tips (Optional but Recommended)

Before launching campaigns, consider warming up the mailbox:

• Start with 10-20 emails/day
• Gradually increase sending volume
• Mix in replies and engagement

You can also use Instantly’s warm-up automation if available.