Why do my emails appear as "sent on behalf of" me?
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.
firstname.lastname@example.org on behalf of email@example.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:
However, these email providers will make the sender header 'on behalf of' visible:
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.