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List Management

List Cleaning

Post Import Process

After importing contacts into a list (regardless of the import option used), each list is put through a set of processes to ensure the list is clean and good for use in a campaign. The following is a breakdown of the individual processes the list is put through.

List Cleaning

Post import, every list goes through Maxmail's built in cleaning process which is the second generation of the Predictive Bounceback Handler you may have encountered in Maxmail 3. During this process Maxmail will automatically delete any blank records and flag invalid email addresses for your review.

One of the most common reasons for email addresses to be marked invalid is poorly formatted email addresses or addresses that contain typos. Hence, for most common typos, Maxmail attempts to automatically fix these for you.

However, in cases where we acquire reasons to believe that the email address being checked does not exist or is not currently active, we will mark those as invalid as well.

If the total number of invalid addresses in a list is greater than a certain threshold, then you will be required to manually verify those records before you can use the list in any campaigns.

Duplicate Checking

When importing records, Maxmail requires you to verify whether or not the data being imported is mainly to do with email addresses or mobile numbers. We ask this question to configure our duplicate checking process which uses either email addresses or mobile numbers as the unique identifier.

If duplicates are found the list is automatically locked down with a red flag until you manually decide what you wish to do with the duplicate records.

You can process duplicate records in one of two ways.

You can either tell Maxmail to keep only one instance of the record and delete all others with no bias toward any one occurance of the record.


You can merge duplicate records based on certain criterion being met.

When merging duplicate records you will be asked to select one of the instances of the duplicate records to be a master. All other instances of the duplicate record are then merged into the master.

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