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 Constant Contact than for Amazon SES.

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

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 (%)
76.37 % 75.69 %	21.04 % 21.79 %	2.59 % 2.52 %

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

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

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.