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
8.930 402.367	7.419 301.987	1.179 84.582	332 15.798

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 (%)
83.08 % 75.05 %	13.20 % 21.02 %	3.72 % 3.93 %

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	617 30976	527 24160	68 5678	22 1138	85.41 % 78.00 %	11.02 % 18.33 %	3.57 % 3.67 %
Elektronics	707 30708	595 23290	87 6280	25 1138	84.16 % 75.84 %	12.31 % 20.45 %	3.54 % 3.71 %
Entertainment	677 30913	568 23150	88 6503	21 1260	83.90 % 74.89 %	13.00 % 21.04 %	3.10 % 4.08 %
Cosmetics & Beauty	743 30980	613 23228	97 6542	33 1210	82.50 % 74.98 %	13.06 % 21.12 %	4.44 % 3.91 %
Food & Drink	625 30988	545 24258	69 5647	11 1083	87.20 % 78.28 %	11.04 % 18.22 %	1.76 % 3.49 %
Home & Garden	714 30946	607 24077	81 5710	26 1159	85.01 % 77.80 %	11.34 % 18.45 %	3.64 % 3.75 %
Finance	699 31323	564 22433	106 7585	29 1305	80.69 % 71.62 %	15.16 % 24.22 %	4.15 % 4.17 %
Health	703 30494	560 22117	106 7128	37 1249	79.66 % 72.53 %	15.08 % 23.38 %	5.26 % 4.10 %
Pets	671 31453	565 24236	83 6044	23 1173	84.20 % 77.05 %	12.37 % 19.22 %	3.43 % 3.73 %
Sport & Fitness	712 31287	585 23098	101 6922	26 1267	82.16 % 73.83 %	14.19 % 22.12 %	3.65 % 4.05 %
Job & Career	687 30585	563 22476	103 6813	21 1296	81.95 % 73.49 %	14.99 % 22.28 %	3.06 % 4.24 %
Dating	677 31242	545 21915	103 7953	29 1374	80.50 % 70.15 %	15.21 % 25.46 %	4.28 % 4.40 %
Other	698 30472	582 23549	87 5777	29 1146	83.38 % 77.28 %	12.46 % 18.96 %	4.15 % 3.76 %

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	681 40118	522 28861	120 9595	39 1662	76.65 % 71.94 %	17.62 % 23.92 %	5.73 % 4.14 %
Outlook Mail	682 39859	557 28875	100 9246	25 1738	81.67 % 72.44 %	14.66 % 23.20 %	3.67 % 4.36 %
Yahoo Mail	743 39996	603 29886	101 8505	39 1605	81.16 % 74.72 %	13.59 % 21.26 %	5.25 % 4.01 %
AOL Mail	679 39056	569 29184	91 8220	19 1652	83.80 % 74.72 %	13.40 % 21.05 %	2.80 % 4.23 %
Mail.com	682 40259	563 30571	85 8129	34 1559	82.55 % 75.94 %	12.46 % 20.19 %	4.99 % 3.87 %
Yandex Mail	674 40334	550 29556	100 9093	24 1685	81.60 % 73.28 %	14.84 % 22.54 %	3.56 % 4.18 %
GMX Mail	677 39713	574 30042	79 8191	24 1480	84.79 % 75.65 %	11.67 % 20.63 %	3.55 % 3.73 %
Zoho Mail	717 40186	609 30900	84 7856	24 1430	84.94 % 76.89 %	11.72 % 19.55 %	3.35 % 3.56 %
ProtonMail	690 40393	590 30993	76 7951	24 1449	85.51 % 76.73 %	11.01 % 19.68 %	3.48 % 3.59 %
Custom Mail	636 40422	556 31547	69 7450	11 1425	87.42 % 78.04 %	10.85 % 18.43 %	1.73 % 3.53 %
iCloud Mail	716 655	569 478	122 136	25 41	79.47 % 72.98 %	17.04 % 20.76 %	3.49 % 6.26 %
Tuta	689 683	584 537	80 107	25 39	84.76 % 78.62 %	11.61 % 15.67 %	3.63 % 5.71 %
Juno.com	664 693	573 557	72 103	19 33	86.30 % 80.38 %	10.84 % 14.86 %	2.86 % 4.76 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.