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
77.005 77.376	58.115 58.851	16.752 16.516	2.138 2.009

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 (%)
75.47 % 76.06 %	21.75 % 21.35 %	2.78 % 2.60 %

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	6185 5909	4653 4440	1353 1299	179 170	75.23 % 75.14 %	21.88 % 21.98 %	2.89 % 2.88 %
Elektronics	5641 5925	4262 4507	1208 1276	171 142	75.55 % 76.07 %	21.41 % 21.54 %	3.03 % 2.40 %
Entertainment	5966 5885	4517 4452	1290 1281	159 152	75.71 % 75.65 %	21.62 % 21.77 %	2.67 % 2.58 %
Cosmetics & Beauty	5704 6227	4340 4782	1214 1289	150 156	76.09 % 76.79 %	21.28 % 20.70 %	2.63 % 2.51 %
Food & Drink	6036 5860	4522 4417	1336 1298	178 145	74.92 % 75.38 %	22.13 % 22.15 %	2.95 % 2.47 %
Home & Garden	5952 5802	4433 4390	1355 1255	164 157	74.48 % 75.66 %	22.77 % 21.63 %	2.76 % 2.71 %
Finance	5847 6052	4638 4809	1058 1080	151 163	79.32 % 79.46 %	18.09 % 17.85 %	2.58 % 2.69 %
Health	5799 5852	4532 4597	1110 1112	157 143	78.15 % 78.55 %	19.14 % 19.00 %	2.71 % 2.44 %
Pets	5771 5969	4334 4523	1284 1290	153 156	75.10 % 75.77 %	22.25 % 21.61 %	2.65 % 2.61 %
Sport & Fitness	5974 6013	4502 4597	1302 1262	170 154	75.36 % 76.45 %	21.79 % 20.99 %	2.85 % 2.56 %
Job & Career	5898 5970	4328 4390	1403 1438	167 142	73.38 % 73.53 %	23.79 % 24.09 %	2.83 % 2.38 %
Dating	6064 5874	4326 4241	1578 1471	160 162	71.34 % 72.20 %	26.02 % 25.04 %	2.64 % 2.76 %
Other	6168 6038	4728 4706	1261 1165	179 167	76.65 % 77.94 %	20.44 % 19.29 %	2.90 % 2.77 %

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	5714 5498	4156 4015	1400 1347	158 136	72.73 % 73.03 %	24.50 % 24.50 %	2.77 % 2.47 %
Outlook Mail	5494 5450	4066 4036	1273 1268	155 146	74.01 % 74.06 %	23.17 % 23.27 %	2.82 % 2.68 %
Yahoo Mail	5514 5564	4084 4177	1272 1237	158 150	74.07 % 75.07 %	23.07 % 22.23 %	2.87 % 2.70 %
AOL Mail	5520 5387	4135 4058	1240 1189	145 140	74.91 % 75.33 %	22.46 % 22.07 %	2.63 % 2.60 %
Mail.com	5466 5602	4168 4317	1150 1144	148 141	76.25 % 77.06 %	21.04 % 20.42 %	2.71 % 2.52 %
Yandex Mail	5488 5579	4136 4177	1215 1266	137 136	75.36 % 74.87 %	22.14 % 22.69 %	2.50 % 2.44 %
GMX Mail	5433 5520	4019 4113	1266 1260	148 147	73.97 % 74.51 %	23.30 % 22.83 %	2.72 % 2.66 %
Zoho Mail	5493 5492	4196 4223	1142 1119	155 150	76.39 % 76.89 %	20.79 % 20.38 %	2.82 % 2.73 %
ProtonMail	5582 5503	4346 4269	1080 1086	156 148	77.86 % 77.58 %	19.35 % 19.73 %	2.79 % 2.69 %
Custom Mail	5204 5501	4064 4341	991 1021	149 139	78.09 % 78.91 %	19.04 % 18.56 %	2.86 % 2.53 %
iCloud Mail	5619 5570	4011 4087	1444 1338	164 145	71.38 % 73.38 %	25.70 % 24.02 %	2.92 % 2.60 %
Tuta	5664 5715	4405 4450	1097 1120	162 145	77.77 % 77.87 %	19.37 % 19.60 %	2.86 % 2.54 %
Juno.com	5290 5583	4060 4370	1079 1068	151 145	76.75 % 78.27 %	20.40 % 19.13 %	2.85 % 2.60 %
Mailfence	5524 5412	4269 4218	1103 1053	152 141	77.28 % 77.94 %	19.97 % 19.46 %	2.75 % 2.61 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.