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
76.915 77.510	58.159 59.481	16.629 16.188	2.127 1.841

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

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	6114 5944	4603 4513	1336 1272	175 159	75.29 % 75.93 %	21.85 % 21.40 %	2.86 % 2.67 %
Elektronics	5727 5884	4319 4526	1237 1229	171 129	75.41 % 76.92 %	21.60 % 20.89 %	2.99 % 2.19 %
Entertainment	5928 5842	4505 4463	1263 1241	160 138	76.00 % 76.40 %	21.31 % 21.24 %	2.70 % 2.36 %
Cosmetics & Beauty	5686 6241	4333 4839	1202 1259	151 143	76.20 % 77.54 %	21.14 % 20.17 %	2.66 % 2.29 %
Food & Drink	6029 5830	4542 4446	1310 1251	177 133	75.34 % 76.26 %	21.73 % 21.46 %	2.94 % 2.28 %
Home & Garden	5919 5786	4427 4414	1327 1226	165 146	74.79 % 76.29 %	22.42 % 21.19 %	2.79 % 2.52 %
Finance	5822 6092	4623 4874	1048 1070	151 148	79.41 % 80.01 %	18.00 % 17.56 %	2.59 % 2.43 %
Health	5742 5925	4494 4712	1093 1083	155 130	78.27 % 79.53 %	19.04 % 18.28 %	2.70 % 2.19 %
Pets	5837 5939	4411 4529	1270 1267	156 143	75.57 % 76.26 %	21.76 % 21.33 %	2.67 % 2.41 %
Sport & Fitness	5959 5982	4485 4600	1305 1245	169 137	75.26 % 76.90 %	21.90 % 20.81 %	2.84 % 2.29 %
Job & Career	5969 6109	4390 4537	1414 1439	165 133	73.55 % 74.27 %	23.69 % 23.56 %	2.76 % 2.18 %
Dating	6086 5928	4336 4307	1589 1471	161 150	71.25 % 72.66 %	26.11 % 24.81 %	2.65 % 2.53 %
Other	6097 6008	4691 4721	1235 1135	171 152	76.94 % 78.58 %	20.26 % 18.89 %	2.80 % 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	5594 5523	4047 4063	1389 1332	158 128	72.35 % 73.57 %	24.83 % 24.12 %	2.82 % 2.32 %
Outlook Mail	5617 5505	4164 4127	1300 1245	153 133	74.13 % 74.97 %	23.14 % 22.62 %	2.72 % 2.42 %
Yahoo Mail	5486 5699	4073 4311	1257 1247	156 141	74.24 % 75.64 %	22.91 % 21.88 %	2.84 % 2.47 %
AOL Mail	5505 5519	4127 4197	1232 1189	146 133	74.97 % 76.05 %	22.38 % 21.54 %	2.65 % 2.41 %
Mail.com	5447 5656	4168 4395	1131 1128	148 133	76.52 % 77.71 %	20.76 % 19.94 %	2.72 % 2.35 %
Yandex Mail	5546 5614	4197 4249	1215 1244	134 121	75.68 % 75.69 %	21.91 % 22.16 %	2.42 % 2.16 %
GMX Mail	5485 5503	4068 4138	1275 1236	142 129	74.17 % 75.20 %	23.25 % 22.46 %	2.59 % 2.34 %
Zoho Mail	5364 5515	4118 4277	1094 1100	152 138	76.77 % 77.55 %	20.40 % 19.95 %	2.83 % 2.50 %
ProtonMail	5613 5421	4375 4234	1078 1051	160 136	77.94 % 78.10 %	19.21 % 19.39 %	2.85 % 2.51 %
Custom Mail	5239 5419	4086 4313	999 981	154 125	77.99 % 79.59 %	19.07 % 18.10 %	2.94 % 2.31 %
iCloud Mail	5587 5464	3997 4049	1429 1286	161 129	71.54 % 74.10 %	25.58 % 23.54 %	2.88 % 2.36 %
Tuta	5710 5673	4463 4460	1082 1079	165 134	78.16 % 78.62 %	18.95 % 19.02 %	2.89 % 2.36 %
Juno.com	5302 5601	4078 4421	1076 1047	148 133	76.91 % 78.93 %	20.29 % 18.69 %	2.79 % 2.37 %
Mailfence	5420 5398	4198 4247	1072 1023	150 128	77.45 % 78.68 %	19.78 % 18.95 %	2.77 % 2.37 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.