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 Amazon SES than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
75.459 74.768	59.576 58.205	14.542 15.167	1.771 1.985

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 (%)
78.95 % 77.85 %	19.27 % 20.29 %	2.35 % 2.65 %

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	5735 5437	4485 4213	1152 1138	131 151	78.20 % 77.49 %	20.09 % 20.93 %	2.28 % 2.78 %
Elektronics	5771 5581	4553 4369	1096 1101	136 147	78.89 % 78.28 %	18.99 % 19.73 %	2.36 % 2.63 %
Entertainment	5691 5916	4495 4601	1095 1176	129 157	78.98 % 77.77 %	19.24 % 19.88 %	2.27 % 2.65 %
Cosmetics & Beauty	5834 5824	4637 4510	1105 1219	125 157	79.48 % 77.44 %	18.94 % 20.93 %	2.14 % 2.70 %
Food & Drink	5929 5639	4669 4369	1155 1194	142 136	78.75 % 77.48 %	19.48 % 21.17 %	2.40 % 2.41 %
Home & Garden	5949 5761	4679 4471	1169 1194	143 151	78.65 % 77.61 %	19.65 % 20.73 %	2.40 % 2.62 %
Finance	5806 5827	4768 4715	934 988	136 165	82.12 % 80.92 %	16.09 % 16.96 %	2.34 % 2.83 %
Health	5838 5838	4760 4671	976 1061	133 155	81.53 % 80.01 %	16.72 % 18.17 %	2.28 % 2.66 %
Pets	5638 5801	4417 4527	1135 1160	133 154	78.34 % 78.04 %	20.13 % 20.00 %	2.36 % 2.65 %
Sport & Fitness	5825 5786	4578 4483	1135 1182	140 159	78.59 % 77.48 %	19.48 % 20.43 %	2.40 % 2.75 %
Job & Career	5986 5867	4622 4473	1256 1291	135 151	77.21 % 76.24 %	20.98 % 22.00 %	2.26 % 2.57 %
Dating	5626 5727	4250 4245	1277 1368	138 151	75.54 % 74.12 %	22.70 % 23.89 %	2.45 % 2.64 %
Other	5831 5764	4663 4558	1057 1095	150 151	79.97 % 79.08 %	18.13 % 19.00 %	2.57 % 2.62 %

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	5630 5398	4305 4093	1211 1205	132 134	76.47 % 75.82 %	21.51 % 22.32 %	2.34 % 2.48 %
Outlook Mail	5423 5279	4228 4031	1100 1148	127 144	77.96 % 76.36 %	20.28 % 21.75 %	2.34 % 2.73 %
Yahoo Mail	5318 5548	4220 4271	1003 1197	123 148	79.35 % 76.98 %	18.86 % 21.58 %	2.31 % 2.67 %
AOL Mail	5627 5346	4440 4119	1095 1123	126 144	78.91 % 77.05 %	19.46 % 21.01 %	2.24 % 2.69 %
Mail.com	5346 5699	4262 4487	995 1110	122 153	79.72 % 78.73 %	18.61 % 19.48 %	2.28 % 2.68 %
Yandex Mail	5442 5370	4270 4159	1095 1145	128 145	78.46 % 77.45 %	20.12 % 21.32 %	2.35 % 2.70 %
GMX Mail	5490 5324	4297 4045	1088 1167	130 136	78.27 % 75.98 %	19.82 % 21.92 %	2.37 % 2.55 %
Zoho Mail	5537 5633	4393 4448	1055 1078	129 152	79.34 % 78.96 %	19.05 % 19.14 %	2.33 % 2.70 %
ProtonMail	5649 5338	4542 4272	991 980	131 139	80.40 % 80.03 %	17.54 % 18.36 %	2.32 % 2.60 %
Custom Mail	5446 5528	4428 4407	943 1018	122 146	81.31 % 79.72 %	17.32 % 18.42 %	2.24 % 2.64 %
iCloud Mail	5506 5419	4203 4116	1207 1212	139 151	76.33 % 75.95 %	21.92 % 22.37 %	2.52 % 2.79 %
Tuta	5645 5408	4520 4283	1038 1018	141 144	80.07 % 79.20 %	18.39 % 18.82 %	2.50 % 2.66 %
Juno.com	5434 5450	4368 4321	949 998	127 142	80.38 % 79.28 %	17.46 % 18.31 %	2.34 % 2.61 %
Mailfence	3966 4028	3100 3153	772 768	94 107	78.16 % 78.28 %	19.47 % 19.07 %	2.37 % 2.66 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.