June 21, 2006 : InfinityXT version 0.1 is released
The seed (pre-pre-alpha) version of InfinityXT is released to the public. This is just a bare-bones, proof-of-concept prototype of the official EmailXT client. Expect many bugs and non-working features.

September 25, 2006 : InfinityXT version 0.12 is released
This is an improved version with better handling of the EmailXT standard, correcting a few early-stage bugs found in the first test rounds.

November 1, 2006 : InfinityXT version 0.13 is released
Includes some bugfixes, UI enhancements and allows replying and forwarding EmailXT messages.