Without actually sending any test emails, mailing list validation, or verification, refers to confirming whether an email address is legitimate and deliverable. This approach reduces hard and soft bounces, assists in avoiding spam traps, and improves the overall performance of their email campaigns.
Three steps are commonly involved in email validation:
- The basic stage is to check the email addresses against recognized email formatting standards and to detect typos and spelling issues in both the local and domain components of an email address: any spaces or invalid characters, missing at the sign, and so on.
- If the syntax and formatting are correct, the verification continues by checking if the DNS is legitimate and active, as well as whether the mail exchanger record exists and can receive emails.
- The final step is to ensure that the specified mailbox exists and that it is not full. This is commonly accomplished using the SMTP protocol. The email verifier program sends an EHLO or HELO message to the precise email address and waits for a response from the email server. The email address is valid and active if the latter arrives.
Software and SaaS are the two forms of email verification solutions. Software is a Cheap Email Validation tool that users may download and install on their computers, whereas SaaS-based solutions are available online and can be accessed from any device at any time.
Desktop email verifiers are less expensive because users just pay once for a licensed copy of the program, which they can use to scan an infinite number of emails. Users of online-based solutions pay either a monthly membership or a fee based on the number of verifications or the number of emails they can check per month.
Multiple users –
If people opt for a desktop verifier, they can only use it on the computer where it was installed and configured. However, with SaaS-based solutions, the scenario is completely different: they may log in from any device and have several users access a single account. However, some online verifiers allow users to restrict access to specific IP addresses.
On the one hand, when people use a desktop app on a single device, their mailing list is stored on their computer and is therefore exclusively under their control. People don’t have to be concerned about data leaks, except spyware concerns, which they should leave to their firewall. The database, on the other hand, will be lost if the computer crashes, thus they should always have a backup and make reserve copies stored elsewhere regularly. Meanwhile, when users check their mailing lists online, the information is saved in their web account, where it is safe from viruses and computer hardware problems.
Despite all of the benefits, the truth is that excessive usage of desktop verifiers jeopardizes their IP reputation. For spam attacks, email servers may accept numerous verification requests and respond with false-positive or false-negative verification statuses. Anti-spam databases may blacklist their IP address in the worst-case situation. Of course, using a proxy to conceal the real IP address is an option, but this adds extra time and cost to each validated email.