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
76.796 77.377	58.531 59.263	16.313 16.280	1.952 1.834

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 (%)
76.22 % 76.59 %	21.24 % 21.04 %	2.54 % 2.37 %

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	6096 6015	4639 4543	1298 1315	159 157	76.10 % 75.53 %	21.29 % 21.86 %	2.61 % 2.61 %
Elektronics	5759 5993	4393 4631	1211 1231	155 131	76.28 % 77.27 %	21.03 % 20.54 %	2.69 % 2.19 %
Entertainment	5912 5899	4526 4481	1239 1279	147 139	76.56 % 75.96 %	20.96 % 21.68 %	2.49 % 2.36 %
Cosmetics & Beauty	5686 6021	4358 4690	1187 1197	141 134	76.64 % 77.89 %	20.88 % 19.88 %	2.48 % 2.23 %
Food & Drink	5971 5782	4533 4401	1272 1246	166 135	75.92 % 76.12 %	21.30 % 21.55 %	2.78 % 2.33 %
Home & Garden	5924 5876	4444 4474	1327 1257	153 145	75.02 % 76.14 %	22.40 % 21.39 %	2.58 % 2.47 %
Finance	5801 6015	4612 4788	1048 1078	141 149	79.50 % 79.60 %	18.07 % 17.92 %	2.43 % 2.48 %
Health	5676 5920	4496 4696	1041 1090	139 134	79.21 % 79.32 %	18.34 % 18.41 %	2.45 % 2.26 %
Pets	5863 5977	4473 4543	1244 1286	146 148	76.29 % 76.01 %	21.22 % 21.52 %	2.49 % 2.48 %
Sport & Fitness	5981 5999	4518 4594	1311 1265	152 140	75.54 % 76.58 %	21.92 % 21.09 %	2.54 % 2.33 %
Job & Career	5911 6103	4393 4526	1366 1440	152 137	74.32 % 74.16 %	23.11 % 23.59 %	2.57 % 2.24 %
Dating	6055 5847	4357 4248	1553 1457	145 142	71.96 % 72.65 %	25.65 % 24.92 %	2.39 % 2.43 %
Other	6161 5930	4789 4648	1216 1139	156 143	77.73 % 78.38 %	19.74 % 19.21 %	2.53 % 2.41 %

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	5507 5633	4008 4144	1360 1357	139 132	72.78 % 73.57 %	24.70 % 24.09 %	2.52 % 2.34 %
Outlook Mail	5624 5493	4190 4102	1294 1261	140 130	74.50 % 74.68 %	23.01 % 22.96 %	2.49 % 2.37 %
Yahoo Mail	5392 5663	4028 4284	1222 1244	142 135	74.70 % 75.65 %	22.66 % 21.97 %	2.63 % 2.38 %
AOL Mail	5396 5531	4057 4203	1210 1194	129 134	75.19 % 75.99 %	22.42 % 21.59 %	2.39 % 2.42 %
Mail.com	5505 5532	4255 4291	1113 1112	137 129	77.29 % 77.57 %	20.22 % 20.10 %	2.49 % 2.33 %
Yandex Mail	5633 5570	4298 4223	1205 1221	130 126	76.30 % 75.82 %	21.39 % 21.92 %	2.31 % 2.26 %
GMX Mail	5505 5556	4118 4157	1255 1266	132 133	74.80 % 74.82 %	22.80 % 22.79 %	2.40 % 2.39 %
Zoho Mail	5405 5370	4188 4153	1074 1083	143 134	77.48 % 77.34 %	19.87 % 20.17 %	2.65 % 2.50 %
ProtonMail	5571 5485	4377 4281	1049 1066	145 138	78.57 % 78.05 %	18.83 % 19.43 %	2.60 % 2.52 %
Custom Mail	5241 5348	4131 4248	966 976	144 124	78.82 % 79.43 %	18.43 % 18.25 %	2.75 % 2.32 %
iCloud Mail	5680 5411	4096 3976	1434 1307	150 128	72.11 % 73.48 %	25.25 % 24.15 %	2.64 % 2.37 %
Tuta	5624 5676	4448 4454	1024 1096	152 126	79.09 % 78.47 %	18.21 % 19.31 %	2.70 % 2.22 %
Juno.com	5360 5700	4161 4490	1066 1073	133 137	77.63 % 78.77 %	19.89 % 18.82 %	2.48 % 2.40 %
Mailfence	5353 5409	4176 4257	1041 1024	136 128	78.01 % 78.70 %	19.45 % 18.93 %	2.54 % 2.37 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.