Email Account Management

Connect and manage multiple email accounts with health monitoring, warmup, and deliverability tracking.

Supported Email Providers

Gmail

Connect via OAuth or SMTP

  • • OAuth (recommended)
  • • SMTP with app password

Outlook

Microsoft 365 and Outlook.com

  • • OAuth (recommended)
  • • SMTP with password

Custom SMTP

Any email provider with SMTP

  • • Custom host and port
  • • TLS/SSL/STARTTLS

Connecting an Email Account

OAuth Connection (Recommended)

  1. Click "Connect Email Account"
  2. Select your provider (Gmail or Outlook)
  3. Click "Connect with OAuth"
  4. Authorize CuppaSend in the popup window
  5. Account is automatically configured and tested

OAuth is more secure and doesn't require managing passwords.

SMTP Connection

For custom providers or manual configuration, enter these details:

  • Email Address: Your full email address
  • SMTP Host: Server hostname (e.g., smtp.gmail.com)
  • SMTP Port: Usually 587 (TLS) or 465 (SSL)
  • Username: Usually your email address
  • Password: Your email password or app-specific password
  • Authentication: Select TLS, SSL, or STARTTLS
  • Daily Send Limit: Maximum emails per day (start with 50-100)

Click "Test Connection" before saving to verify settings.

Account Health Status

Each email account has a health status indicating its sending capability:

Healthy

Account is working properly with good deliverability (bounce rate < 5%)

Warning

Elevated bounce rate (5-10%) or minor issues. Monitor closely and reduce send volume.

Error

Connection issues or high bounce rate (>10%). Account needs attention immediately.

Suspended

Account temporarily disabled due to errors. Fix issues and re-enable manually.

Email Warmup System

Warmup gradually builds your sender reputation by slowly increasing email volume over time. This is critical for new email accounts or accounts that haven't sent bulk emails before.

Why Warmup?

Email providers like Gmail and Outlook monitor sending patterns. Sudden high-volume sending from a new account triggers spam filters. Warmup prevents this by gradually establishing your account as a legitimate sender.

Configuring Warmup

Enable Warmup

Toggle warmup on for any email account. Best practice: enable warmup for all new accounts.

Daily Increase

How many additional emails to send each day. Recommended: 5-10 emails/day increase.

Max Warmup Emails

Target volume when warmup is complete. Set based on your daily sending needs (e.g., 100-200).

Warmup Duration

Total days for warmup period. Typical range: 14-30 days depending on target volume.

Warmup Progress Tracking

Monitor warmup progress with these metrics:

  • Warmup Stage: Current day in the warmup period
  • Total Sent: Cumulative emails sent during warmup
  • Success Rate: Percentage of successfully delivered emails
  • Current Daily Limit: Today's sending cap based on warmup progress

Once warmup completes, the account automatically transitions to your configured daily limit and can be used for full campaign sending.

Daily Send Limits

Set a daily send limit for each email account to:

  • Control sending volume and prevent triggering spam filters
  • Stay within provider limits (Gmail: 500/day, Outlook: 300/day for personal accounts)
  • Distribute volume across multiple accounts for better deliverability
  • Protect your sender reputation by avoiding sudden spikes

Daily Limit Best Practices

  • • New accounts: Start with 20-50 emails/day
  • • Warmed accounts: 100-200 emails/day
  • • Established accounts: Up to 300-500 emails/day
  • • Never exceed provider limits

Email Authentication

CuppaSend checks your email authentication records to ensure optimal deliverability:

SPF (Sender Policy Framework)

Verifies that emails are sent from authorized servers. Add CuppaSend's IP to your SPF record.

DKIM (DomainKeys Identified Mail)

Cryptographically signs emails to verify sender identity. Set up DKIM keys in your DNS.

DMARC (Domain-based Message Authentication)

Tells receiving servers how to handle failed authentication. Configure DMARC policy in DNS.

Managing Email Accounts

Test Connection

Verify SMTP settings are correct by sending a test email. Do this before saving new accounts.

Edit Account

Update settings like daily limit, warmup configuration, or SMTP credentials. Changes apply immediately.

Disable Account

Temporarily stop using an account without deleting it. Useful during troubleshooting or when rotating accounts.

Delete Account

Remove an email account from CuppaSend. This doesn't delete the actual email account, just the connection. Cannot be undone.

Monitoring & Troubleshooting

High Bounce Rate

If bounce rate exceeds 5%, stop sending immediately. Clean your lead list, verify email addresses, and check authentication records.

Connection Errors

Check SMTP settings, password, and whether the email provider has blocked the connection. Try testing the connection again.

Suspended Account

Review error logs, fix the underlying issue (usually authentication or rate limits), then manually re-enable the account.

Best Practices

✓ Use multiple email accounts

Distribute sending across 3-5 accounts to avoid hitting individual account limits and improve deliverability.

✓ Always warm up new accounts

Never skip warmup for new accounts or accounts that haven't sent bulk email before. This is critical for long-term deliverability.

✓ Monitor health daily

Check account health status regularly. Address warnings immediately before they become errors.

✓ Set up proper authentication

Configure SPF, DKIM, and DMARC for all domains you send from. This dramatically improves inbox placement.

Pro Tip

Rotate your email accounts by using different accounts for different campaigns. This distributes volume, reduces risk, and makes it easier to track which accounts perform best for specific audiences.