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- Syntax check: Email verification tools perform a syntax check to ensure that the email address is correctly formatted and follows the proper syntax rules. This includes checking for the presence of an “@” symbol, verifying that the domain name is correctly spelled, and ensuring that the address does not contain any invalid characters. By identifying and flagging invalid email addresses during this initial check, verification tools help to prevent delivery issues and reduce the likelihood of emails bouncing back.
- Domain and DNS check: A domain and DNS check verifies that the domain name associated with an email address is valid and has properly configured DNS records. This helps to ensure that emails sent to the address are delivered to the correct mail server and reduces the risk of emails being rejected or flagged as spam. By performing this check, email verification tools can also help to identify potential issues with DNS configuration or domain name ownership that could impact email deliverability.
- Mail exchanger (MX) test: An MX test verifies that the email address is associated with a valid mail server that can receive and process incoming messages. By checking the MX record of the domain name associated with the email address, verification tools can ensure that emails are routed to the correct server and avoid delivery issues.
- Mailbox confirmation: Mailbox confirmation confirms that the email address exists and is currently in use by a real person or entity. This helps to prevent emails from being sent to inactive or non-existent accounts, which can result in high bounce rates and negatively impact deliverability. By verifying that the mailbox exists, email verification tools can also help to identify potential issues with the email address, such as typos or outdated information.
- Spam trap detection: Spam trap detection identifies email addresses that are known to be used for spam trapping or other malicious purposes. By flagging these addresses, verification tools help to prevent emails from being sent to potentially harmful or risky addresses, which can negatively impact deliverability and damage sender reputation.
- Role account detection: Role account detection identifies email addresses that are generic and often not associated with a specific person. These types of addresses, such as “info@domain.com” or “sales@domain.com“, may be more likely to result in low engagement or high bounce rates, as they are often not monitored by individual recipients. By identifying role accounts, email verification tools can help to improve targeting and increase engagement rates.
- Disposable email detection: Disposable email detection identifies email addresses that are temporary or disposable and may be used for fraudulent or spammy purposes. By flagging these addresses, verification tools help to prevent emails from being sent to potentially harmful or risky addresses, which can negatively impact deliverability and damage sender reputation. Additionally, avoiding disposable email addresses can help to improve list quality and increase engagement rates, as these types of addresses may be less likely to result in meaningful interactions.
