Mailguard - How to manually create a user

User accounts can be manually created by a domain administrator.


Domain administrator instructions:

  1. Login to Mailguard as a domain administrator.
  2. Go to Admin (Admin) => Users.
  3. Under "Add New Email Address/Alias":
    1. Enter the desired e-mail address in the "New E-mail address/alias:" field and click the "Add New E-mail Address/Alias" button.


Thank you for being a ETRN customer. Please contact us if you have any questions.

We Answer Your Questions: FAQ

Q: What is the maximum e-mail attachment size?

A: The e-mail servers do not limit the size of individual e-mail attachments. The e-mail servers do impose a 400 MB maximum total message size limit. Individual customers can choose a smaller message size limit. We can also customize the handling of "over-sized" e-mails. Please contact us to discuss your specific needs. A couple of important facts:

1. Attachments are typically encoded in what is called Base64[1]. As a result, the actual length of MIME-compliant Base64-encoded binary data is usually about 137% of the original file size.

2. E-mails often contain both plain text and HTML components. This also increases the overall size of the e-mail.