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
77.377 76.796	59.263 58.531	16.280 16.313	1.834 1.952

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

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

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

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.