How to reduce bounces in Email Marketing

To ensure an email address is valid and doesn't generate a bounce, you can employ a more sophisticated method, which involves connecting to the email server and performing a "fake" SMTP handshake without sending an actual email. This method verifies the existence of the email address on the server.

Here's a step-by-step guide that helps you performs this check:

Regex Validation: This ensures the email has a valid format.

• Domain Validation: Check that the domain has valid MX (Mail Exchange) records.
• Third-Party Email Validation Services: Use services that specialize in email validation.
• Disposable Email Address Check: Identify if the email address belongs to a disposable email provider.
• Role-Based Email Address Check: Determine if the email is a role-based address (e.g., admin@, support@), which might not be ideal for certain types of communications.

To check that a domain has valid MX (Mail Exchange) records, you can use various methods, including command-line tools, online services, or programming libraries. Here are some ways to do it:

Domain Validation: Using Command-Line Tools

1. Using nslookup:
2. Using dig:

Using Online Services

There are several online tools available to check MX records. You can use services like MXToolbox:

1. Go to MXToolbox.
2. Enter the domain name in the search box.
3. Click on "MX Lookup" to see the MX records.

Popular Email Validation Services

1. ZeroBounce
2. NeverBounce
3. Hunter
4. EmailListVerify
5. BriteVerify

To determine if an email address belongs to a disposable email provider or if it is a role-based email address, you can follow these steps:

Disposable Email Address Check

1. Disposable Email List: Maintain a list of known disposable email domains. These lists are often available online and can be updated periodically.
2. Domain Lookup: Extract the domain from the email address and check if it exists in your list of disposable email domains.

Role-Based Email Address Check

1. Role-Based Email List: Compile a list of common role-based email prefixes such as admin@, support@, info@, etc.
2. Prefix Lookup: Extract the prefix from the email address and check if it matches any entries in your role-based email list.