Domain Authentication - Email Deliverability | Zoho Marketing Automation

Domain Authentication

Email marketing is constantly subjected to spamming and spoofing affecting the business in the long term. You, as an email user, would often find your inboxes with spam messages. Most of those email senders seem familiar to you but are actually not who they say they are. Spammers make use of a legit sender's identity to flood inboxes with unwanted. So, mailbox providers such as Gmail, Yahoo!, Outlook, and Zoho Mail use a validation process called domain authentication to identify unsolicited emails and filter them to spam. In this process, even genuine emails from an unauthenticated domain may land in spam.

Authenticating your domain indicates to your leads that your emails are genuine. It improves your domain reputation and increases the trust among your leads and mailbox providers.

Why should I authenticate my sender domain

Let's take a look at the various reasons as to why you should authenticate your domain.

  • Improves your email deliverability.
  • Prevents misuse of your domain.
  • Increases the chances of your email to land directly in the inbox.
  • Makes you an authentic email sender improving your reputation in the market.

What if I don't authenticate my sender domain

If you send emails from an unauthenticated domain, mailbox providers display to your contacts that your emails are from an unauthorized source. This is to warn your contacts that the email could be spam. Most mailbox providers view unauthenticated sender domains as suspicious, and differentiate them from authenticated senders to help their users avoid getting spoofed.

Gmail differentiates an unverified sender in the sender address part of an email with a "via", as shown in the image below. Here, zcsend.net is the sending source (Zoho Campaigns) and zylker.com is the actual email sender domain. Gmail has warned its users to avoid engaging with this email.

How Gmail shows emails from unauthenticated sender domains

Zoho Mail also shows the sender domain that the email has been sent via.

How Zoho Mail shows marketing emails from unauthenticated sender domains

In addition, Zoho Mail displays the original sender details in Sent by section of an email.

How Zoho Mail shows sender details

Zoho Mail also warns its users to be cautious while taking any actions in the email.

How Zoho Mail warns its users of emails from unauthenticated sender domains

Similarly, Outlook shows "on behalf of" in the sender address part of an email.

How Outlook warns its users of unauthenticated sender domain emails

To avoid this, authenticate your sender domain with Zoho Campaigns through SPF and DKIM.

How to authenticate your domain with Zoho Marketing Automation 

Zoho Marketing Automatio recommends authenticating your email domain before sending out newsletters to improve email deliverability.


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