Amazon SES and Constant Contact Email Deliverability Comparison

Amazon SES

Constant Contact

In this comparison, the deliverability of Amazon SES and Constant Contact 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
64.456 63.973	51.232 50.112	12.207 12.784	1.447 1.666

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 (%)
79.48 % 78.33 %	18.94 % 19.98 %	2.24 % 2.60 %

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

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

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.