The following graph shows the popularity of different email clients by the recipients on your mailing list.

Mail Client User Agent Penetration / %
Outlook
45%
Outlook Outlook 2007
24%
Outlook Outlook 2000-2003
20%
Outlook Outlook Web Access (Explorer)
< 1%
Apple Mail
27%
Apple Mail Apple Mail 3
19%
Apple Mail Apple Mail 2
7%
Gmail
7%
Gmail Using Firefox
4%
Gmail Using Explorer
1%
Gmail Using Safari
1%
Gmail Using Opera
< 1%
Apple iPhone
5%
Apple iPhone iPhone
5%
Thunderbird
5%
Thunderbird Thunderbird 2
5%
Thunderbird Thunderbird 1.5
< 1%
Thunderbird Thunderbird 3
< 1%
Entourage
2%
Entourage Entourage 2004
2%
Yahoo! Mail
1%
Yahoo! Mail Using Firefox
1%
Yahoo! Mail Using Explorer
< 1%
Windows Live Hotmail
1%
Windows Live Hotmail Using Explorer
< 1%
Windows Live Hotmail Using Firefox
< 1%
Lotus Notes
1%
Lotus Notes Notes 6-7
< 1%
Lotus Notes Notes 8
< 1%
Sproutit Mailroom
< 1%
Sproutit Mailroom Using Safari
< 1%
Sproutit Mailroom Using Explorer
< 1%
AOL Mail
< 1%
AOL Mail Using Explorer
< 1%
AOL Mail Using Firefox
< 1%
Windows Live Mail
< 1%
Windows Live Mail Live Mail 2008
< 1%
Orange
< 1%
Orange Using Explorer
< 1%
MSN Hotmail
< 1%
MSN Hotmail Using Firefox
< 1%
USA.Net Email
< 1%
USA.Net Email Other
< 1%
SendLabs
< 1%
SendLabs Other
< 1%
karlyoder.com
< 1%
karlyoder.com Other
< 1%
Tiscali
< 1%
Tiscali Using Explorer
< 1%
GMX
< 1%
GMX Using Explorer
< 1%
Freenet.de
< 1%
Freenet.de Using Explorer
< 1%
NTL
< 1%
NTL Using Explorer
< 1%
PebbleRoad
< 1%
PebbleRoad Other
< 1%
Club Internet
< 1%
Club Internet Using Explorer
< 1%
163.com
< 1%
163.com Using Explorer
< 1%
Yandex.ru
< 1%
Yandex.ru Using Firefox
< 1%
Free.fr
< 1%
Free.fr Using Explorer
< 1%
BigPond
< 1%
BigPond Using Explorer
< 1%
EarthLink
< 1%
EarthLink Using Explorer
< 1%
.Mac
< 1%
.Mac Other
< 1%
Comcast
< 1%
Comcast Using Explorer
< 1%
Walla!
< 1%
Walla! Using Explorer
< 1%
Mail.com
< 1%
Mail.com Using Explorer
< 1%
Others
< 1%

Download the raw data in Excel format to generate your own graphs and charts.