| 1 |
 Google Apps for Business |
40,285,719 |
|
| 2 |
Sendgrid |
31,259,161 |
|
| 3 |
GoDaddy Email |
10,457,768 |
|
| 4 |
Microsoft Exchange Online |
3,561,502 |
|
| 5 |
Mandrill |
1,101,661 |
|
| 6 |
Yahoo Business Email |
943,590 |
|
| 7 |
Amazon SES |
814,349 |
|
| 8 |
QQ Mail |
726,207 |
|
| 9 |
Rackspace Email |
484,347 |
|
| 10 |
Postmark |
387,924 |
|
| 11 |
MailChimp |
354,095 |
|
| 12 |
Constant Contact |
219,322 |
|
| 13 |
AWeber |
177,295 |
|
| 14 |
Mailjet |
72,001 |
|
| 15 |
ElasticEmail |
31,100 |
|
| 16 |
Websense |
24,340 |
|
| 17 |
GetResponse |
23,152 |
|
| 18 |
Symantec.cloud |
21,566 |
|
| 19 |
VerticalResponse |
17,770 |
|
| 20 |
CampaignMonitor |
16,493 |
|
| 21 |
Mad Mimi |
16,415 |
|
| 22 |
ActiveCampaign |
10,214 |
|
| 23 |
MailChimp Goals |
8,743 |
|
| 24 |
Benchmarkemail |
6,344 |
|
| 25 |
Adestra |
4,329 |
|
| 26 |
ConvertKit |
3,676 |
|
| 27 |
Campaigner |
3,602 |
|
| 28 |
Cheetah mail |
3,190 |
|
| 29 |
iContact |
2,888 |
|
| 30 |
SendinBlue |
2,705 |
|
| 31 |
dotMailer |
2,544 |
|
| 32 |
ActiveTrail |
2,445 |
|
| 33 |
APSIS |
2,072 |
|
| 34 |
Aurea Email Marketing |
1,740 |
|
| 35 |
Emma |
1,645 |
|
| 36 |
Responder |
1,431 |
|
| 37 |
StreamSend |
1,275 |
|
| 38 |
Soundest |
1,187 |
|
| 39 |
Pure360 |
1,157 |
|
| 40 |
Liveclicker |
1,114 |
|
| 41 |
Vision 6 |
919 |
|
| 42 |
phpList |
833 |
|
| 43 |
EmailBrain |
822 |
|
| 44 |
Pepipost |
776 |
|
| 45 |
GraphicMail |
639 |
|
| 46 |
BlueHornet |
561 |
|
| 47 |
NetSuite Mail |
558 |
|
| 48 |
WordFly |
423 |
|
| 49 |
WhatCounts |
390 |
|
| 50 |
SendMsg |
278 |
|
| 51 |
VIPlus |
237 |
|
| 52 |
Jango Mail |
214 |
|
| 53 |
1 and 1 Email Hosting |
213 |
|
| 54 |
InWise |
192 |
|
| 55 |
Bluecore |
160 |
|
| 56 |
Rackspace MailGun |
138 |
|
| 57 |
Publicators |
77 |
|
| 58 |
MailUp |
73 |
|
| 59 |
Rejoiner |
70 |
|
| 60 |
ResultsMail |
54 |
|
| 61 |
MovableInk |
31 |
|
| 62 |
Pulseem |
21 |
|
| 63 |
InforU |
19 |
|
| 64 |
Agillic |
3 |
|