Amazon SES and Constant Contact Email Deliverability Comparison

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
70.711 464.675	60.903 351.590	7.663 94.581	2.145 18.504

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 (%)
86.13 % 75.66 %	10.84 % 20.35 %	3.03 % 3.98 %

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	5366 35727	4775 28052	467 6347	124 1328	88.99 % 78.52 %	8.70 % 17.77 %	2.31 % 3.72 %
Elektronics	5513 35461	4825 27120	546 7006	142 1335	87.52 % 76.48 %	9.90 % 19.76 %	2.58 % 3.76 %
Entertainment	5474 35681	4714 26967	595 7271	165 1443	86.12 % 75.58 %	10.87 % 20.38 %	3.01 % 4.04 %
Cosmetics & Beauty	5483 35744	4703 27021	600 7307	180 1416	85.77 % 75.60 %	10.94 % 20.44 %	3.28 % 3.96 %
Food & Drink	5431 35835	4821 28231	481 6336	129 1268	88.77 % 78.78 %	8.86 % 17.68 %	2.38 % 3.54 %
Home & Garden	5531 35736	4903 28004	490 6390	138 1342	88.65 % 78.36 %	8.86 % 17.88 %	2.50 % 3.76 %
Finance	5441 36106	4533 26129	710 8451	198 1526	83.31 % 72.37 %	13.05 % 23.41 %	3.64 % 4.23 %
Health	5394 35266	4563 25854	643 7940	188 1472	84.59 % 73.31 %	11.92 % 22.51 %	3.49 % 4.17 %
Pets	5401 36215	4707 28096	528 6755	166 1364	87.15 % 77.58 %	9.78 % 18.65 %	3.07 % 3.77 %
Sport & Fitness	5481 36116	4646 26879	660 7746	175 1491	84.77 % 74.42 %	12.04 % 21.45 %	3.19 % 4.13 %
Job & Career	5387 35458	4514 26203	698 7699	175 1556	83.79 % 73.90 %	12.96 % 21.71 %	3.25 % 4.39 %
Dating	5355 36050	4472 25599	691 8831	192 1620	83.51 % 71.01 %	12.90 % 24.50 %	3.59 % 4.49 %
Other	5454 35280	4727 27435	554 6502	173 1343	86.67 % 77.76 %	10.16 % 18.43 %	3.17 % 3.81 %

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	5509 44943	4434 32430	837 10589	238 1924	80.49 % 72.16 %	15.19 % 23.56 %	4.32 % 4.28 %
Outlook Mail	5392 44648	4570 32601	661 10084	161 1963	84.76 % 73.02 %	12.26 % 22.59 %	2.99 % 4.40 %
Yahoo Mail	5500 44741	4705 33650	621 9288	174 1803	85.55 % 75.21 %	11.29 % 20.76 %	3.16 % 4.03 %
AOL Mail	5323 43892	4562 32975	601 9019	160 1898	85.70 % 75.13 %	11.29 % 20.55 %	3.01 % 4.32 %
Mail.com	5465 45122	4730 34478	569 8886	166 1758	86.55 % 76.41 %	10.41 % 19.69 %	3.04 % 3.90 %
Yandex Mail	5401 45262	4542 33399	673 9950	186 1913	84.10 % 73.79 %	12.46 % 21.98 %	3.44 % 4.23 %
GMX Mail	5407 44538	4757 33970	500 8898	150 1670	87.98 % 76.27 %	9.25 % 19.98 %	2.77 % 3.75 %
Zoho Mail	5584 44928	4922 34771	515 8541	147 1616	88.14 % 77.39 %	9.22 % 19.01 %	2.63 % 3.60 %
ProtonMail	5388 45185	4781 34954	464 8611	143 1620	88.73 % 77.36 %	8.61 % 19.06 %	2.65 % 3.59 %
Custom Mail	5329 45252	4744 35527	461 8116	124 1609	89.02 % 78.51 %	8.65 % 17.94 %	2.33 % 3.56 %
iCloud Mail	5558 5341	4547 3987	802 1053	209 301	81.81 % 74.65 %	14.43 % 19.72 %	3.76 % 5.64 %
Tuta	5383 5338	4747 4328	492 783	144 227	88.19 % 81.08 %	9.14 % 14.67 %	2.68 % 4.25 %
Juno.com	5472 5485	4862 4520	467 763	143 202	88.85 % 82.41 %	8.53 % 13.91 %	2.61 % 3.68 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.