Latest proposal:

• Hi. This is my second proposal, almost 2 years later. italo [-at-] oopsclick.com
• I would prefer version one, and since there still is no official logo, I would suggest to simply use it. - Markus

• Hi. I am Italo and this is my contribution.

• Hey! Why don't you guys use this logo? It's great! scott [at] mcknight.org
• I really like this logo. This is very good. Mike [at] mobrien.com
• Italo, Gradisco questa immagine. - Aaron Stone
• Excellent logo! jpmens [at] gmail

Initial proposal: Well one initial idea is an envelope going into a “database cylinder” and here's a little SVG of that idea:

dbmail-mailcan-logo-1.svg