Enhancing Deliverability with FlashInfo's Embedded Email Validator

Email verification is an essential step in ensuring that your sales and marketing efforts reach the right audience.

An email verifier tool helps validate the legitimacy of email addresses and reduces the chances of your messages being marked as spam or bouncing. In this knowledge base article, we will explore how email verifiers work, the different status types they return, and how FlashInfo's embedded email verifier enhances deliverability for your sales and marketing campaigns.

How Email Verifiers Work

An email verifier checks the validity and deliverability of email addresses by following these steps:

  1. Syntax check: The verifier first examines the email address's format to ensure it adheres to standard email address syntax rules, such as the presence of an '@' symbol and a valid domain name.

  2. Domain check: Next, the verifier checks the domain name to confirm that it exists and is properly configured to receive emails.

  3. Mailbox check: Finally, the verifier attempts to verify that the mailbox associated with the email address exists and can receive messages. This step may involve pinging the mail server or using other advanced techniques to ensure the email address is valid.

Status Types Returned by Email Verifiers

Email verifiers typically return one of the following status types:

  1. Valid: The email address has passed all checks and is considered deliverable.
  2. Invalid: The email address has failed one or more checks, indicating that it is undeliverable or nonexistent.
  3. Risky: The email address is considered deliverable, but there is a higher risk of it being spam trap or causing a bounce. This status may be due to a history of bounces or other factors indicating that the address is unreliable.
  4. Unknown: The email verifier could not determine the deliverability of the email address, usually due to the mail server not responding or other technical issues.
  5. Catch-all: The domain is configured to accept all emails sent to it, regardless of whether the specified mailbox exists or not. These email addresses can be risky, as they may result in a higher bounce rate.

FlashInfo's Embedded Email Verifier

FlashInfo's embedded email verifier is designed to seamlessly integrate into your sales and marketing efforts, providing real-time email verification and enhancing the deliverability of your messages. Here's how FlashInfo's email verifier works to improve your campaigns:

  1. Real-time verification (FlashInfo Engage): FlashInfo verifies email addresses as you add them to your contact lists or when importing contacts, ensuring that your list is clean and up-to-date from the start.

  2. Offline verification (FlashInfo Discover): By integrating offline email verification with FlashInfo Discover, you can select verified email under FlashInfo Discover and minimize the risk of bounces and spam complaints.

  3. Customizable settings (FlashInfo Engage): FlashInfo allows you to configure the email verifier according to your specific needs, letting you choose the level of risk you are willing to accept and automatically segmenting your contact list based on verification status.


FlashInfo's embedded email verifier is a powerful tool for improving the deliverability and success of your sales and marketing campaigns. By verifying the status of your email addresses, FlashInfo helps you maintain a clean contact list and effectively target the right audience. By unifying sales intelligence, engagement, warm-up and email verification within a single platform, FlashInfo streamlines your sales and marketing processes, ultimately leading to higher conversion rates and increased revenue.

When you leverage FlashInfo's comprehensive suite of tools and features, you can trust that your campaigns are reaching the right inboxes, reducing the risk of bounces, spam complaints, and other deliverability issues. This unified experience not only saves you time and effort but also enhances your overall sales and marketing strategies for better results. Give FlashInfo's embedded email verifier a try to experience the difference it can make in the effectiveness of your campaigns.