The information requested is as follows.
Web mail users
There are 5,070 web mail users (as of February 2008).
Server users
There are 9,731 server users known to the CJSM Directory (as of February 2008).
Emails sent in each month since February 2004
Figures for the number of messages sent across the service since February 2004 are not available. However, the figures from November 2004 to February 2008 are as follows:
2004 2005 2006 2007 2008 January — 34,441 133,308 264,557 466,102 February — 27,972 194,532 273,838 488,577 March — 31,806 229,088 365,198 — April — 38,130 189,311 285,628 — May — 34,115 223,441 315,779 — June — 48,184 246,448 350,629 — July — 30,404 261,010 353,964 — August — 44,042 243,846 374,764 — September — 60,898 251,408 357,493 — October — 78,524 255,386 424,841 — November 20,100 115,529 262,626 431,158 — December 21,452 118,465 218,003 371,335 —
The number of emails sent across the service has steadily increased over the period since 2004. The same is true for the web mail users and server users.