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 Amazon SES than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
77.346 76.660	59.160 58.836	16.331 15.978	1.855 1.846

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

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

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

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.