Embed company logo in e-mail template (embed, not link)

Hi all,

we're currently sprucing up our outward appearance a bit, and as part of this effort we're revising our invoice notification and payment reminder email templates.

To add our company logo to the email itself, we've resorted to using a standard img=src direct link format so far, but with the increased blocking of image links by newer email clients, more than often the resulting email looks blah with the images being blocked out and replaced with the email clients' placeholder.

One way to work around this could be replacing direct image links with CID content embedding, but so far my efforts were fruitless.

Does anyone know how to embed the company logo into the message body of the email without using the direct image link?

Thanks in advance for any advice...