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
77.376 77.005	58.851 58.115	16.516 16.752	2.009 2.138

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

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

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

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.