Why do my emails appear as "sent on behalf of" me?

Last Modified: 04/09/2012

When you use HubSpot's Email Manager to send emails, the software automatically appends a sender header to your email that usually looks like 'on behalf of (your name)'. This is done so that the Internet Service Providers of your email recipients can easily identify the source of your email, and confirm that it is from a known source and not spam.

Many of your email recipients might not see this 'on behalf of' message in the sender header. However, some commonly used email clients, including Outlook and Hotmail, do make this Sender header visible to your contacts.

Here is an example of how this message might look in your recipient:

cantrav.com@emailer.hubspot.com on behalf of info@cantrav.com

What your recipient sees, and whether or not it includes this 'behalf of' message, depends on the email provider that they use.

For instance, these email providers will display only the From Name to the recipient:

  • Yahoo
  • AOL
  • Comcast
  • MacMail
  • Gmail

However, these email providers will make the sender header 'on behalf of' visible:

  • Outlook 2007
  • Outlook 2003
  • Hotmail
  • Entourage
  • Thunderbird

It's normal for email sent via systems like HubSpot to display this sender header to recipients who use the relevant email providers mentioned above. This does not mean that the email is spam, nor does it mean that any email systems are going to identify it as spam. It is simply a standard practice for displaying the sender address for some email service providers.

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