Ignas2 min readTips & ResourcesJune 28, 2013

Improve your deliverability with email authentication

Improve your deliverability with email authentication

Did you ever get an email that claims it’s from PayPal or eBay, but it’s not? That’s a serious problem with email – it’s quite easy to forge and send under any name or address you want. This is why large ISPs and corporate email servers are now using email authentication methods to fight spam.

What is email authentication?

Email authentication is a simple method that helps to prove if an email is actually coming from the person who claims to be sending it.

Authenticating your emails, by authorising MailerLite servers to send email on your behalf helps you avoid spam filters, improve your email deliverability and proves your emails aren’t a forgery.

Default authentication settings

By default MailerLite will sign your emails automatically without you needing to do a thing. All popular authentication techniques, including DomainKeys, DKIM, SenderID and SPF records, are set up for you.

With this method you can still set your own “from” address (e.g. info@yourcompany.com) but some email clients, such as Gmail and Outlook, will add extra sender details to the “from” field indicating that you use MailerLite servers to send your emails. Your “from” will look like this:

  • In Gmail: “info@yourcompany.com via mlsend.com”
  • In Outlook: “Your Company <info=yourcompany.com@mlsend.com> on behalf of Your Company <info@yourcompany.com>”

Advanced settings – manage authentication yourself

If you don’t want to see extra details in “from” field like “via” or “on behalf of”, you should manage authentication yourself. In order to use this method, you should have access to the DNS records for your domain.

To enable this method, click “Authentication” in the top menu and choose “I’ll manage my own authentication”:

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Add your domain:

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You will get instructions on how to update your domain DNS records:

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