Email List Cleaner

zebNet® NewsTurbo can help you to clean your mailing lists meaning that invalid as well as non existing email addresses can get removed from your mailing lists. This way, all of your mailing lists only contain real email addresses.

Select Distribution List

Select the mailing list you wish to clean. You can select any mailing list that you have created in the section "Manage Lists". If there is no list available for selection, you have to create a mailing list at first.

What to do with invalid addresses?

Specify what should be happen with email addresses that were detected as invalid.

Unsubscribe them

All invalid email addresses will be unsubscribed from the mailing list so they are inactive subscribers afterwards.

Delete them

All invalid email addresses will permanently be removed from the mailing list so they are no longer available in the mailing list afterwards.

Options

Allows you to specify several different validation levels that should be used for validating email addresses

Perform DNS Query

Performs a DNS query to ensure that an actual email server has been assigned to the domain name of the email address. You can consider the email address as permanently invalid if this check fails.

Test SMTP Connection

Performs a connection test to the email server of the email address to ensure that the server would technically be able to receive your email. Even if this check fails, it doesn't necessarily mean that the email address is indeed permanently invalid because the target email server could just have a temporary technical problem. To get the best result for this validation level, please ensure to enter proper information in the fields "Mail From" as well as "Hello Domain (HELO/EHLO)".

Perform Send Attempt*

Performs a send attempt of your message but without actually sending the message. You can consider this as an ultimate test because the recipient wouldn't receive the message at all if this test fails. To get the best result for this validation level, please ensure to enter proper information in the fields "Mail From" as well as "Hello Domain (HELO/EHLO)". Also, you have to select the proper IP address that should be used for this validation level on option "Local Endpoint".

Check for Trash Email

Checks if the email address is from a known trash email address provider. This is a reliable method to get all trash email addresses removed from your mailing list.

Mail From

Enter the email address that should be used for the different kind of validation levels. Only enter a valid and real existing email address because otherwise, you will get wrong test results.

Hello Domain (HELO/EHLO)

Enter the domain name that should be used to communicate with the target email server. This is normally the host name, the RDNS address or the PTR record value of your email server and should be something like "mail.mydomain.com". Depending on the configuration of your email server, the format might differ from above so it could also be something like "smtp.mydomain.com". Therefore, please double-check the information entered here because when entering a wrong domain name, you will get wrong test results.

Local Endpoint*

When enabling the option "Perform Send Attempt" you are required select the appropriate IP address here that should be used for this validation level. The IP address you select here must resolve to the entered Hello Domain (HELO/EHLO) therefore, you should only enable the feature "Perform Send Attempt" if both NewsTurbo as well as your email server are installed on the very same machine. Please do not select any random IP address that does not resolve to the entered Hello Domain because otherwise, all email addresses will be marked as invalid.

Please note: An email address that has been marked as invalid for the current process can be valid on the next process because of temporary technical problems or a Greylisting with the target email server.

*This feature/option is only available in zebNet NewsTurbo Server.