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HOWTO - Forward emails "As Attachments"

If you ever need to forward an email to ETRN, we always need it "As an Attachment" (not "inline"). Click on your email program in the list below to find out how to do this.

Outlook Express


  1. Click on "Options" then click on "Show original"
  2. Choose "View" then "Source":-
  3. Choose "File" then "Save as" to save the email somewhere on your computer, then compose a new email and attach this saved file


Follow these 5 steps:-

  1. Go into your "Options"
  2. Choose "Mail Display Settings"
  3. Click on "Advanced" in the "Message Headers" section, then click OK
  4. Open the email you want to forward, and click "View E-Mail Message Source"
  5. Right-Click anywhere in the new window that pop-up, and click "View Source". Finally, choose "Save As" from the "File" menu, save the source somewhere on your hard drive, then compose a new email and attach this file, then click "send"


Outlook has no obvious built-in way to forward emails as attachments, so you need to follow these steps to accomplish it:-

  1. You must select two emails; like this:-
    • Click on the email you want to forward,
    • then hold down your "SHIFT" key on your keyboard,
    • and click on the next email after it.

    Then click the "Forward" button

  2. When the "Compose" window pops up, click on the email attachment you don't want to forward, and press your "delete" keyboard button to remove it
  3. Complete and send the email

Outlook Express

Right-Click on the email's subject, then choose "Forward As Attachment"


  1. First, right-click on the email subject and choose "Forward" from the menu
  2. Then, double-check that in the "Attachments" area that you can see the attachment email, and that you can not see the contents of the email in the body section


Select the "As Attachment" option by clicking on the "Forward" drop-down menu option


We welcome any feedback. 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.