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
77.510 76.915	59.481 58.159	16.188 16.629	1.841 2.127

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 (%)
76.74 % 75.61 %	20.89 % 21.62 %	2.38 % 2.77 %

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	5944 6114	4513 4603	1272 1336	159 175	75.93 % 75.29 %	21.40 % 21.85 %	2.67 % 2.86 %
Elektronics	5884 5727	4526 4319	1229 1237	129 171	76.92 % 75.41 %	20.89 % 21.60 %	2.19 % 2.99 %
Entertainment	5842 5928	4463 4505	1241 1263	138 160	76.40 % 76.00 %	21.24 % 21.31 %	2.36 % 2.70 %
Cosmetics & Beauty	6241 5686	4839 4333	1259 1202	143 151	77.54 % 76.20 %	20.17 % 21.14 %	2.29 % 2.66 %
Food & Drink	5830 6029	4446 4542	1251 1310	133 177	76.26 % 75.34 %	21.46 % 21.73 %	2.28 % 2.94 %
Home & Garden	5786 5919	4414 4427	1226 1327	146 165	76.29 % 74.79 %	21.19 % 22.42 %	2.52 % 2.79 %
Finance	6092 5822	4874 4623	1070 1048	148 151	80.01 % 79.41 %	17.56 % 18.00 %	2.43 % 2.59 %
Health	5925 5742	4712 4494	1083 1093	130 155	79.53 % 78.27 %	18.28 % 19.04 %	2.19 % 2.70 %
Pets	5939 5837	4529 4411	1267 1270	143 156	76.26 % 75.57 %	21.33 % 21.76 %	2.41 % 2.67 %
Sport & Fitness	5982 5959	4600 4485	1245 1305	137 169	76.90 % 75.26 %	20.81 % 21.90 %	2.29 % 2.84 %
Job & Career	6109 5969	4537 4390	1439 1414	133 165	74.27 % 73.55 %	23.56 % 23.69 %	2.18 % 2.76 %
Dating	5928 6086	4307 4336	1471 1589	150 161	72.66 % 71.25 %	24.81 % 26.11 %	2.53 % 2.65 %
Other	6008 6097	4721 4691	1135 1235	152 171	78.58 % 76.94 %	18.89 % 20.26 %	2.53 % 2.80 %

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	5523 5594	4063 4047	1332 1389	128 158	73.57 % 72.35 %	24.12 % 24.83 %	2.32 % 2.82 %
Outlook Mail	5505 5617	4127 4164	1245 1300	133 153	74.97 % 74.13 %	22.62 % 23.14 %	2.42 % 2.72 %
Yahoo Mail	5699 5486	4311 4073	1247 1257	141 156	75.64 % 74.24 %	21.88 % 22.91 %	2.47 % 2.84 %
AOL Mail	5519 5505	4197 4127	1189 1232	133 146	76.05 % 74.97 %	21.54 % 22.38 %	2.41 % 2.65 %
Mail.com	5656 5447	4395 4168	1128 1131	133 148	77.71 % 76.52 %	19.94 % 20.76 %	2.35 % 2.72 %
Yandex Mail	5614 5546	4249 4197	1244 1215	121 134	75.69 % 75.68 %	22.16 % 21.91 %	2.16 % 2.42 %
GMX Mail	5503 5485	4138 4068	1236 1275	129 142	75.20 % 74.17 %	22.46 % 23.25 %	2.34 % 2.59 %
Zoho Mail	5515 5364	4277 4118	1100 1094	138 152	77.55 % 76.77 %	19.95 % 20.40 %	2.50 % 2.83 %
ProtonMail	5421 5613	4234 4375	1051 1078	136 160	78.10 % 77.94 %	19.39 % 19.21 %	2.51 % 2.85 %
Custom Mail	5419 5239	4313 4086	981 999	125 154	79.59 % 77.99 %	18.10 % 19.07 %	2.31 % 2.94 %
iCloud Mail	5464 5587	4049 3997	1286 1429	129 161	74.10 % 71.54 %	23.54 % 25.58 %	2.36 % 2.88 %
Tuta	5673 5710	4460 4463	1079 1082	134 165	78.62 % 78.16 %	19.02 % 18.95 %	2.36 % 2.89 %
Juno.com	5601 5302	4421 4078	1047 1076	133 148	78.93 % 76.91 %	18.69 % 20.29 %	2.37 % 2.79 %
Mailfence	5398 5420	4247 4198	1023 1072	128 150	78.68 % 77.45 %	18.95 % 19.78 %	2.37 % 2.77 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.