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 Constant Contact than for Amazon SES.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
66.041 65.457	49.987 49.992	14.393 13.772	1.661 1.693

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. Constant Contact beats Amazon SES in this comparison.

Inbox (%)	Spam (%)	Lost (%)
75.69 % 76.37 %	21.79 % 21.04 %	2.52 % 2.59 %

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, Constant Contact is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	5176 4789	3891 3623	1157 1037	128 129	75.17 % 75.65 %	22.35 % 21.65 %	2.47 % 2.69 %
Elektronics	4959 4926	3758 3784	1073 1023	128 119	75.78 % 76.82 %	21.64 % 20.77 %	2.58 % 2.42 %
Entertainment	5013 5074	3809 3868	1089 1073	115 133	75.98 % 76.23 %	21.72 % 21.15 %	2.29 % 2.62 %
Cosmetics & Beauty	5082 5140	3884 3913	1083 1097	115 130	76.43 % 76.13 %	21.31 % 21.34 %	2.26 % 2.53 %
Food & Drink	5138 5050	3866 3825	1142 1104	130 121	75.24 % 75.74 %	22.23 % 21.86 %	2.53 % 2.40 %
Home & Garden	5077 4925	3810 3745	1135 1054	132 126	75.04 % 76.04 %	22.36 % 21.40 %	2.60 % 2.56 %
Finance	5091 5060	4065 4068	896 852	130 140	79.85 % 80.40 %	17.60 % 16.84 %	2.55 % 2.77 %
Health	5068 4980	4017 3959	926 890	125 131	79.26 % 79.50 %	18.27 % 17.87 %	2.47 % 2.63 %
Pets	5058 5077	3791 3892	1140 1051	127 134	74.95 % 76.66 %	22.54 % 20.70 %	2.51 % 2.64 %
Sport & Fitness	5116 5187	3846 3937	1137 1106	133 144	75.18 % 75.90 %	22.22 % 21.32 %	2.60 % 2.78 %
Job & Career	5150 5011	3767 3700	1254 1189	129 122	73.15 % 73.84 %	24.35 % 23.73 %	2.50 % 2.43 %
Dating	5017 5086	3560 3651	1324 1303	133 132	70.96 % 71.79 %	26.39 % 25.62 %	2.65 % 2.60 %
Other	5096 5152	3923 4027	1037 993	136 132	76.98 % 78.16 %	20.35 % 19.27 %	2.67 % 2.56 %

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, Constant Contact is better than Amazon SES.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4870 4727	3514 3484	1235 1128	121 115	72.16 % 73.70 %	25.36 % 23.86 %	2.48 % 2.43 %
Outlook Mail	4676 4400	3471 3264	1085 1018	120 118	74.23 % 74.18 %	23.20 % 23.14 %	2.57 % 2.68 %
Yahoo Mail	4648 4699	3511 3522	1016 1049	121 128	75.54 % 74.95 %	21.86 % 22.32 %	2.60 % 2.72 %
AOL Mail	4816 4621	3634 3484	1067 1013	115 124	75.46 % 75.39 %	22.16 % 21.92 %	2.39 % 2.68 %
Mail.com	4564 4980	3498 3850	956 1004	110 126	76.64 % 77.31 %	20.95 % 20.16 %	2.41 % 2.53 %
Yandex Mail	4786 4626	3583 3497	1090 1015	113 114	74.86 % 75.59 %	22.77 % 21.94 %	2.36 % 2.46 %
GMX Mail	4640 4608	3440 3420	1080 1072	120 116	74.14 % 74.22 %	23.28 % 23.26 %	2.59 % 2.52 %
Zoho Mail	4693 4815	3563 3732	1013 958	117 125	75.92 % 77.51 %	21.59 % 19.90 %	2.49 % 2.60 %
ProtonMail	4856 4573	3783 3605	951 850	122 118	77.90 % 78.83 %	19.58 % 18.59 %	2.51 % 2.58 %
Custom Mail	4542 4742	3565 3741	868 883	109 118	78.49 % 78.89 %	19.11 % 18.62 %	2.40 % 2.49 %
iCloud Mail	4782 4615	3421 3379	1231 1109	130 127	71.54 % 73.22 %	25.74 % 24.03 %	2.72 % 2.75 %
Tuta	4850 4704	3751 3681	968 896	131 127	77.34 % 78.25 %	19.96 % 19.05 %	2.70 % 2.70 %
Juno.com	4636 4580	3609 3593	908 873	119 114	77.85 % 78.45 %	19.59 % 19.06 %	2.57 % 2.49 %
Mailfence	4682 4767	3644 3740	925 904	113 123	77.83 % 78.46 %	19.76 % 18.96 %	2.41 % 2.58 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.