Constant Contact and Amazon SES Email Deliverability Comparison

Constant Contact

Amazon SES

In this comparison, the deliverability of Constant Contact and Amazon SES is compared in detail. All available data, taking the filters into account, is used for the comparison.

Email deliverability

This comparison compares the numbers for sent emails, you can also see in which folder the emails at the email service provider ended up and how many emails were lost on the way. The numbers look better for Amazon SES than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
63.973 64.456	50.112 51.232	12.784 12.207	1.666 1.447

Email deliverability rates

The following table shows the most important deliverability rates (in percent) for the compared providers. The higher the inbox rate and the lower the spam rate, the better. Amazon SES beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
78.33 % 79.48 %	19.98 % 18.94 %	2.60 % 2.24 %

Email deliverability by category

This comparison compares the deliverability taking into account the category or the industry. The deliverability can vary greatly depending on the industry. In this comparison, Amazon SES is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	4680 4838	3647 3818	974 949	124 104	77.93 % 78.92 %	20.81 % 19.62 %	2.65 % 2.15 %
Elektronics	4774 5000	3773 3966	914 937	123 111	79.03 % 79.32 %	19.15 % 18.74 %	2.58 % 2.22 %
Entertainment	5102 4804	3988 3820	1000 908	132 104	78.17 % 79.52 %	19.60 % 18.90 %	2.59 % 2.16 %
Cosmetics & Beauty	4883 5054	3826 4039	990 942	129 106	78.35 % 79.92 %	20.27 % 18.64 %	2.64 % 2.10 %
Food & Drink	4863 5071	3797 4017	1008 974	118 117	78.08 % 79.22 %	20.73 % 19.21 %	2.43 % 2.31 %
Home & Garden	4976 5106	3888 4034	1016 997	127 117	78.14 % 79.01 %	20.42 % 19.53 %	2.55 % 2.29 %
Finance	4956 4930	4015 4057	842 795	140 110	81.01 % 82.29 %	16.99 % 16.13 %	2.82 % 2.23 %
Health	4983 4996	4004 4104	896 815	132 108	80.35 % 82.15 %	17.98 % 16.31 %	2.65 % 2.16 %
Pets	4968 4837	3895 3817	981 954	132 113	78.40 % 78.91 %	19.75 % 19.72 %	2.66 % 2.34 %
Sport & Fitness	4949 4943	3848 3899	1006 961	133 111	77.75 % 78.88 %	20.33 % 19.44 %	2.69 % 2.25 %
Job & Career	5031 5131	3865 4005	1084 1041	130 112	76.82 % 78.05 %	21.55 % 20.29 %	2.58 % 2.18 %
Dating	4880 4758	3655 3634	1140 1053	122 110	74.90 % 76.38 %	23.36 % 22.13 %	2.50 % 2.31 %
Other	4928 4988	3911 4022	933 881	124 124	79.36 % 80.63 %	18.93 % 17.66 %	2.52 % 2.49 %

Email deliverability by email service provider

Finally, the following table compares the deliverability taking into account the email service provider. Similar to the industry, also the email service provider can affect the email deliverability in both directions — positive or negative. In this comparison, Amazon SES is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4709 4760	3594 3677	1032 998	117 103	76.32 % 77.25 %	21.92 % 20.97 %	2.48 % 2.16 %
Outlook Mail	4505 4626	3463 3627	966 927	120 104	76.87 % 78.40 %	21.44 % 20.04 %	2.66 % 2.25 %
Yahoo Mail	4762 4532	3699 3628	1007 831	124 101	77.68 % 80.05 %	21.15 % 18.34 %	2.60 % 2.23 %
AOL Mail	4603 4780	3576 3790	946 923	121 101	77.69 % 79.29 %	20.55 % 19.31 %	2.63 % 2.11 %
Mail.com	4887 4596	3873 3690	937 839	128 100	79.25 % 80.29 %	19.17 % 18.26 %	2.62 % 2.18 %
Yandex Mail	4565 4673	3565 3696	953 917	126 111	78.09 % 79.09 %	20.88 % 19.62 %	2.76 % 2.38 %
GMX Mail	4561 4736	3484 3738	986 914	115 109	76.39 % 78.93 %	21.62 % 19.30 %	2.52 % 2.30 %
Zoho Mail	4795 4798	3814 3835	899 896	127 107	79.54 % 79.93 %	18.75 % 18.67 %	2.65 % 2.23 %
ProtonMail	4616 4839	3720 3916	833 831	116 107	80.59 % 80.93 %	18.05 % 17.17 %	2.51 % 2.21 %
Custom Mail	4732 4720	3784 3865	865 801	126 101	79.97 % 81.89 %	18.28 % 16.97 %	2.66 % 2.14 %
iCloud Mail	4639 4771	3554 3666	1020 1030	125 118	76.61 % 76.84 %	21.99 % 21.59 %	2.69 % 2.47 %
Tuta	4582 4800	3641 3868	861 871	117 115	79.46 % 80.58 %	18.79 % 18.15 %	2.55 % 2.40 %
Juno.com	4724 4639	3767 3747	848 802	120 100	79.74 % 80.77 %	17.95 % 17.29 %	2.54 % 2.16 %
Mailfence	3293 3186	2578 2489	631 627	84 70	78.29 % 78.12 %	19.16 % 19.68 %	2.55 % 2.20 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.