Why Mailchimp won’t accept Mailinator

A client of mine noticed, when importing a large number of email addresses into their Mailchimp list, that all Mailinator email addresses were being identified as having syntax errors. An import or even integration wouldn’t get Mailchimp to accept these email addresses. The client had even tried to add the subscribers one-by-one into their list which just resulted in the error messages ‘Please check your entry and try again‘ and ‘this email address looks fake or invalid. Please enter a real email address‘.

It isn’t possible to add Mailinator emails into Mailchimp

Even although you may have permission to send email campaigns to your subscribers with Mailinator email addresses, Mailchimp won’t allow you to add disposable email addresses (also called throw-away email addresses). Mailinator email addresses aren’t verified email addresses and could belong to anyone. Disposable email addresses are therefore very low quality and sending to email addresses such as these has the potential of negatively affecting the quality score of the Mailchimp domain.

These free disposable email addresses, such as Mailinator, also raise privacy issues as there is little security regarding access to a Mailinator email account.

Will Mailchimp accept spamgourmet or TrashMail?

Mailchimp won’t accept any email addresses into your list from any disposable email provider. Below is a list of disposable email address domains that was created a few years back.

Why won’t Mailchimp accept Mailinator addresses even from Salesforce?

Sometimes an integration between your Shopify store or Microsoft Dynamics or similar and Mailchimp will mean that Mailchimp is more accepting of potentially low quality email addresses (i.e. Mailchimp will allow adding some email addresses from an integration that they otherwise may not accept for importing into your list). The bad news is that even an integration with a critical sales tool such as Salesforce won’t mean that Mailchimp will accept any disposable email addresses into your list.