Quick Answer
How do you add a third-party SMTP account?
Go to Settings → Email Services, select Add Service or Add Email Service, choose Other or the listed provider, and enter your provider's SMTP host, port, username, password, and required TLS/SSL settings. Save the configuration and complete any provider verification steps.
Sending Email Through Your Own Provider
BizStackPro can send emails through an external SMTP provider such as Gmail, Outlook, Yahoo, or another SMTP-supported service.
This can be useful for lower-volume sending or when you need messages to send through a specific mailbox.
Your provider must support SMTP, and you must follow its authentication requirements. Some providers may require an app password or another supported authentication method.
SMTP settings must match your provider
Incorrect hostnames, ports, credentials, or security settings can prevent emails from sending successfully.
Third-Party SMTP Setup at a Glance
Before You Begin
Gather the SMTP connection details required by your email provider.
- Confirm that your email provider supports outbound SMTP.
- Find the correct outbound SMTP hostname.
- Find the SMTP port and required TLS/SSL setting.
- Have the username and password required by the provider.
- Check whether an app password or other provider verification is required.
Step-by-Step: Add a 3rd Party SMTP Service
Step 1: Open Settings
Go to Settings inside BizStackPro.
Step 2: Open Email Services
Select Email Services.
Step 3: Add an Email Service
Select Add Service or Add Email Service.
Step 4: Choose the Provider
Select Other, or choose the specific provider option if it is available.
Step 5: Enter the SMTP Details
Enter the SMTP hostname, port, username, password, and required security type such as TLS or SSL.
Step 6: Save and Verify
Save the configuration and complete any provider verification steps if prompted.
Check app-password requirements
Some providers, including certain Gmail/Google Workspace and Outlook/Microsoft configurations, may require an app password or another supported authentication method. If login fails, review the provider's security settings.
How to Find Your SMTP Host & Port
Your SMTP host and port depend on your email provider. The most reliable source is the provider's official documentation.
If you use a reference list, confirm the values against your provider before adding them to BizStackPro.
Use outbound SMTP settings
Make sure you are using the provider's outbound SMTP hostname and port rather than its IMAP settings.
Important Notes: Deliverability and Sending Limits
If mail starts going to spam
Review SPF, DKIM, and DMARC, reduce sending volume, and begin with your more engaged contacts while you troubleshoot.
Troubleshooting Checklist
Third-Party SMTP Best Practices
Frequently Asked Questions
Are there sending limits with Gmail SMTP?
Can I use different emails in workflows when using Gmail, Outlook, or Yahoo?
How do I find SMTP provider and port details?
Do all SMTP providers report email stats back to BizStackPro?
What should I do if I hit the daily sending limit?
Continue Learning
Continue with related Email & SMTP guides for SMTP providers, email authentication, sending domains, and deliverability.


