Secure Email Usage Distribution in the Top 1 Million Sites

Statistics for websites using Secure Email providers

Technology	Websites	%
Proofpoint	14,813	1.48
Barracuda Networks	6,221	0.62
Sophos	4,057	0.41
Cisco Ironport Cloud	3,717	0.37
Agari	3,144	0.31
Valimail	2,570	0.26
Symantec.cloud	2,287	0.23
FastMail	1,979	0.2
Dyn	1,662	0.17
TrendMicro Email Services	1,513	0.15
Hornetsecurity	1,370	0.14
MailSpike	1,334	0.13
AppRiver	1,191	0.12
CDNS Network	892	0.09
Websense	701	0.07
Mailhardener	597	0.06
MailInBlack	292	0.03
Zix	270	0.03
McAfee SaaS Email	246	0.02
Zivver	242	0.02
FortiCloud	241	0.02
Paubox	215	0.02
SpamTitan	198	0.02
Securence	188	0.02
CensorNet	152	0.02
MailGuard	141	0.01
MailRoute	114	0.01
Network Solutions Email Hosting	109	0.01
Greenview Data	99	0.01
SilverSky	98	0.01
SimpleLogin	90	0.01
SMX	89	0.01
Gaggle	86	0.01
TOPSEC	85	0.01
ZoneEdit MX	82	0.01
Mesh Security	81	0.01
EveryCloud	77	0.01
FilteredMX KGIX	74	0.01
Commtouch	68	0.01
GFI	66	0.01
AnubisNetworks	61	0.01
Heimdal	56	0.01
RPost	50	0
Send Guardian	37	0
ZEROSPAM	35	0
Hushmail	33	0
EncryptTitan	30	0
Sendmetric	29	0
Planisys	29	0
Perimeter	24	0
EchoWorx	24	0
MxHero	22	0
Retarus	20	0
Spamtador	19	0
iCritical	17	0
The Email Laundry	15	0
Spamina	15	0
Mailfence	14	0
ExchangeDefender	14	0
Heluna	12	0
MX Guardian	12	0
Panda Security	11	0
VSL Net	11	0
StartMail	9	0
Permido	9	0
Spam Arrest	8	0
Enguard	5	0
MailCleaner	5	0
SpamPort	5	0
Mithi	5	0
Kerjamail	4	0
ZScaler	2	0
LastSpam	2	0
Akomodix	1	0
Network Box USA	1	0
Webroot	1	0
AnteSpam	1	0