Valid e-mail list are the crème de la crème of lead generation; the main objective of professionals who use email as a communication channel.

To begin with, let’s talk about the high delivery rates you can achieve with a list of valid e-mails.

When people are genuinely interested in receiving your content by email, they opt-in to receive your messages.

In this way, the recipients attest that your communication is important, and their email provider (which will receive the messages) sees this attitude in a very positive light.

Only one element hinders the delivery of valid e-mail: soft bounces, which are temporary problems that prevent the message from reaching the inbox.

For example, internet connection failures, a user’s inbox being full, among other soft bounce problems, can interrupt the arrival of a valid e-mail, but as soon as the problem is solved, the message is delivered normally.

So far, so good. But how do you ensure that the contacts on your list are really valid? This is the detail that will make all the difference in email communication.

What are valid e-mail?

Technically, valid e-mail are those that adhere to the 3 methods of authentication required by ISPs to recognize the domains and IPs responsible for sending the messages.

These certifications are part of the cybersecurity culture, as they prevent phishing scams, ransomware and other scams from reaching users’ inboxes.

SPF, DKIM and DMARC, as well as avoiding an GDPR fine, guarantee a good reputation for the sender of emails.

And in the world of email marketing, reputation is everything.

Email verification works precisely to create and maintain the credibility of email marketing senders. It is through this service that a list of valid e-mail is built.

How the verification service generates valid e-mail list

The verification tool analyzes millions of emails at the same time, with the aim of finding risks for the sender.

SafetyMails has a 19-step verification algorithm through which they are examined:

• The syntax of the email: the correct position of the @ between the user name and the domain; the use of semicolons and other characters not allowed in an email address.
• Whether the domain exists: ghost or deactivated domains invalidate an email. The verifier identifies this type of address.
• The presence of disposable emails: a temporary email soon becomes bounced after it expires (usually after a few hours). The tool reveals the existence of these emails.
• Checking authentication certificates: emails that do not have SPF, DKIM or DMARC authentication are identified.
• Obsolete, deactivated or unengaged contacts, which invalidate an email.
• Spamtraps: emails created by the providers themselves in order to track purchased lists.
• Suspicious users, such as number sequences or system emails, such as [email protected].
• Limited emails: these are valid e-mail with limitations on their capacity to be received, such as intermittent servers. This can lead to delivery problems.
• Among other types of emails that are identified and categorized by the tool as valid and invalid.

After passing through the validator, the emails will form part of a report that reveals to professionals how many and which contacts are at risk, as well as how many and which emails are valid, i.e. those that are active and genuine.

How the real-time verification API works to generate valid e-mail list

To build an email list properly (without buying or exchanging contacts), you need to collect leads.

This is done through a registration form, through which the prospect accesses interesting content and gives up their name and email address in exchange.

The user then enters their email address into the form to access the material. However, typing errors, such as changing a character in the user’s name or domain, are common.

The real-time verification API contains an automatic corrector that validates emails with domain name errors (Gamil / Gmail, for example).

In addition, if the user enters a disposable email – another common practice when filling in forms – the API blocks it and suggests that a valid e-mail be entered, so that the person can continue accessing the material,

The same happens with obsolete emails, emails with syntax errors, disabled domains and all kinds of invalid e-mails, which are automatically recognized by the API and prevented from entering the lists.

Thus, professionals who use this verification feature have valid e-mail lists in their hands, with real business opportunities.

Conclusion

The advantages of working with valid e-mail lists are indisputable. However, in order for your investments to generate good results, you need to use a validation tool, both for sending mass emails and for generating leads through registration forms.

It’s important to remember that validation must be carried out frequently, as lists become outdated very quickly. For example: an email that fails to deliver becomes a bounce.

And lists containing 3% bounces are blocked. That’s why it’s important to remain vigilant and continually monitor the health of lists.

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