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
76.660 77.346	58.836 59.160	15.978 16.331	1.846 1.855

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 (%)
76.75 % 76.49 %	20.84 % 21.11 %	2.41 % 2.40 %

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	5917 6015	4510 4536	1258 1321	149 158	76.22 % 75.41 %	21.26 % 21.96 %	2.52 % 2.63 %
Elektronics	5909 6084	4546 4706	1212 1241	151 137	76.93 % 77.35 %	20.51 % 20.40 %	2.56 % 2.25 %
Entertainment	5926 5962	4538 4530	1244 1296	144 136	76.58 % 75.98 %	20.99 % 21.74 %	2.43 % 2.28 %
Cosmetics & Beauty	5802 5949	4486 4622	1178 1188	138 139	77.32 % 77.69 %	20.30 % 19.97 %	2.38 % 2.34 %
Food & Drink	5980 5806	4579 4417	1243 1254	158 135	76.57 % 76.08 %	20.79 % 21.60 %	2.64 % 2.33 %
Home & Garden	5907 5795	4456 4396	1308 1256	143 143	75.44 % 75.86 %	22.14 % 21.67 %	2.42 % 2.47 %
Finance	5841 5969	4672 4754	1038 1065	131 150	79.99 % 79.64 %	17.77 % 17.84 %	2.24 % 2.51 %
Health	5657 6045	4508 4774	1017 1129	132 142	79.69 % 78.97 %	17.98 % 18.68 %	2.33 % 2.35 %
Pets	5830 6004	4460 4560	1235 1295	135 149	76.50 % 75.95 %	21.18 % 21.57 %	2.32 % 2.48 %
Sport & Fitness	5961 5946	4542 4551	1278 1258	141 137	76.20 % 76.54 %	21.44 % 21.16 %	2.37 % 2.30 %
Job & Career	5839 6056	4386 4472	1313 1444	140 140	75.12 % 73.84 %	22.49 % 23.84 %	2.40 % 2.31 %
Dating	6056 5776	4410 4195	1508 1438	138 143	72.82 % 72.63 %	24.90 % 24.90 %	2.28 % 2.48 %
Other	6035 5939	4743 4647	1146 1146	146 146	78.59 % 78.25 %	18.99 % 19.30 %	2.42 % 2.46 %

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	5467 5532	4008 4057	1328 1345	131 130	73.31 % 73.34 %	24.29 % 24.31 %	2.40 % 2.35 %
Outlook Mail	5577 5594	4175 4159	1269 1303	133 132	74.86 % 74.35 %	22.75 % 23.29 %	2.38 % 2.36 %
Yahoo Mail	5411 5503	4091 4172	1187 1203	133 128	75.61 % 75.81 %	21.94 % 21.86 %	2.46 % 2.33 %
AOL Mail	5339 5586	4038 4225	1181 1218	120 143	75.63 % 75.64 %	22.12 % 21.80 %	2.25 % 2.56 %
Mail.com	5498 5356	4270 4161	1102 1066	126 129	77.66 % 77.69 %	20.04 % 19.90 %	2.29 % 2.41 %
Yandex Mail	5591 5541	4294 4195	1173 1217	124 129	76.80 % 75.71 %	20.98 % 21.96 %	2.22 % 2.33 %
GMX Mail	5506 5598	4150 4176	1231 1284	125 138	75.37 % 74.60 %	22.36 % 22.94 %	2.27 % 2.47 %
Zoho Mail	5437 5425	4246 4188	1058 1100	133 137	78.09 % 77.20 %	19.46 % 20.28 %	2.45 % 2.53 %
ProtonMail	5602 5479	4433 4288	1028 1054	141 137	79.13 % 78.26 %	18.35 % 19.24 %	2.52 % 2.50 %
Custom Mail	5239 5494	4162 4373	939 988	138 133	79.44 % 79.60 %	17.92 % 17.98 %	2.63 % 2.42 %
iCloud Mail	5718 5331	4161 3899	1415 1307	142 125	72.77 % 73.14 %	24.75 % 24.52 %	2.48 % 2.34 %
Tuta	5482 5735	4357 4484	983 1124	142 127	79.48 % 78.19 %	17.93 % 19.60 %	2.59 % 2.21 %
Juno.com	5379 5660	4209 4450	1042 1073	128 137	78.25 % 78.62 %	19.37 % 18.96 %	2.38 % 2.42 %
Mailfence	5414 5512	4242 4333	1042 1049	130 130	78.35 % 78.61 %	19.25 % 19.03 %	2.40 % 2.36 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.