Group Mail for windows is a great email marketing piece of software. It has helped me selling domainnames to endusers several times. It allows -for example- sending multiple personalized emails at once which is essential if you are sending to tens or hundreds of email addresses.
Unfortunately, it only runs under Windows. Since I dropped my Windows installation some time ago, my laptop is only depending on Linux. I'm thus looking for an alternative email program but haven't seen anything other than AWeber which is web-based only.
Who knows of an email marketing program that runs under Linux (Ubuntu)?