| 1 |
 Google Apps for Business |
40,326,056 |
|
| 2 |
Sendgrid |
31,277,264 |
|
| 3 |
GoDaddy Email |
10,459,165 |
|
| 4 |
Microsoft Exchange Online |
3,580,948 |
|
| 5 |
Mandrill |
1,104,306 |
|
| 6 |
Yahoo Business Email |
944,950 |
|
| 7 |
Amazon SES |
816,231 |
|
| 8 |
QQ Mail |
728,231 |
|
| 9 |
Rackspace Email |
484,803 |
|
| 10 |
Postmark |
389,054 |
|
| 11 |
MailChimp |
368,734 |
|
| 12 |
Constant Contact |
219,318 |
|
| 13 |
AWeber |
177,761 |
|
| 14 |
Mailjet |
73,051 |
|
| 15 |
ElasticEmail |
31,811 |
|
| 16 |
Websense |
24,413 |
|
| 17 |
GetResponse |
23,293 |
|
| 18 |
Symantec.cloud |
22,378 |
|
| 19 |
Adestra |
18,690 |
|
| 20 |
VerticalResponse |
17,722 |
|
| 21 |
CampaignMonitor |
16,538 |
|
| 22 |
Mad Mimi |
16,536 |
|
| 23 |
ActiveCampaign |
10,806 |
|
| 24 |
MailChimp Goals |
8,733 |
|
| 25 |
Benchmarkemail |
6,428 |
|
| 26 |
ConvertKit |
3,866 |
|
| 27 |
Campaigner |
3,609 |
|
| 28 |
Cheetah mail |
3,197 |
|
| 29 |
iContact |
2,900 |
|
| 30 |
SendinBlue |
2,867 |
|
| 31 |
dotMailer |
2,643 |
|
| 32 |
ActiveTrail |
2,481 |
|
| 33 |
APSIS |
2,113 |
|
| 34 |
Aurea Email Marketing |
1,738 |
|
| 35 |
Emma |
1,720 |
|
| 36 |
Responder |
1,435 |
|
| 37 |
Soundest |
1,356 |
|
| 38 |
StreamSend |
1,282 |
|
| 39 |
Pure360 |
1,190 |
|
| 40 |
Liveclicker |
1,131 |
|
| 41 |
Vision 6 |
931 |
|
| 42 |
Pepipost |
890 |
|
| 43 |
phpList |
843 |
|
| 44 |
EmailBrain |
821 |
|
| 45 |
VIPlus |
817 |
|
| 46 |
NetSuite Mail |
710 |
|
| 47 |
GraphicMail |
638 |
|
| 48 |
BlueHornet |
587 |
|
| 49 |
WordFly |
423 |
|
| 50 |
WhatCounts |
413 |
|
| 51 |
SendMsg |
279 |
|
| 52 |
1 and 1 Email Hosting |
215 |
|
| 53 |
Jango Mail |
214 |
|
| 54 |
InWise |
193 |
|
| 55 |
Bluecore |
173 |
|
| 56 |
Rackspace MailGun |
139 |
|
| 57 |
MailUp |
89 |
|
| 58 |
Rejoiner |
79 |
|
| 59 |
Publicators |
76 |
|
| 60 |
ResultsMail |
52 |
|
| 61 |
MovableInk |
34 |
|
| 62 |
InforU |
27 |
|
| 63 |
Pulseem |
22 |
|
| 64 |
Agillic |
3 |
|