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
65.251 64.550	50.995 49.829	12.880 13.300	1.512 1.734

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 (%)
78.15 % 77.19 %	19.74 % 20.60 %	2.32 % 2.69 %

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	5007 4681	3880 3583	1032 990	112 131	77.49 % 76.54 %	20.61 % 21.15 %	2.24 % 2.80 %
Elektronics	5002 4869	3917 3787	978 975	119 129	78.31 % 77.78 %	19.55 % 20.02 %	2.38 % 2.65 %
Entertainment	4940 5043	3861 3894	980 1029	108 135	78.16 % 77.22 %	19.84 % 20.40 %	2.19 % 2.68 %
Cosmetics & Beauty	5084 5050	4002 3876	985 1061	107 137	78.72 % 76.75 %	19.37 % 21.01 %	2.10 % 2.71 %
Food & Drink	5128 4904	3992 3763	1028 1059	120 119	77.85 % 76.73 %	20.05 % 21.59 %	2.34 % 2.43 %
Home & Garden	5035 4881	3904 3753	1025 1027	121 130	77.54 % 76.89 %	20.36 % 21.04 %	2.40 % 2.66 %
Finance	5047 4977	4121 4025	813 844	119 142	81.65 % 80.87 %	16.11 % 16.96 %	2.36 % 2.85 %
Health	5036 5016	4091 3996	833 922	114 133	81.24 % 79.67 %	16.54 % 18.38 %	2.26 % 2.65 %
Pets	4904 4974	3800 3853	1010 1007	112 135	77.49 % 77.46 %	20.60 % 20.25 %	2.28 % 2.71 %
Sport & Fitness	5080 5070	3956 3892	1019 1049	120 142	77.87 % 76.77 %	20.06 % 20.69 %	2.36 % 2.80 %
Job & Career	5195 5029	3957 3778	1128 1146	117 130	76.17 % 75.12 %	21.71 % 22.79 %	2.25 % 2.59 %
Dating	4876 5030	3617 3670	1141 1236	119 136	74.18 % 72.96 %	23.40 % 24.57 %	2.44 % 2.70 %
Other	4917 5026	3897 3959	908 955	124 135	79.26 % 78.77 %	18.47 % 19.00 %	2.52 % 2.69 %

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	4863 4661	3671 3490	1091 1073	113 118	75.49 % 74.88 %	22.43 % 23.02 %	2.32 % 2.53 %
Outlook Mail	4669 4463	3596 3358	976 1004	108 125	77.02 % 75.24 %	20.90 % 22.50 %	2.31 % 2.80 %
Yahoo Mail	4612 4725	3624 3595	895 1025	106 127	78.58 % 76.08 %	19.41 % 21.69 %	2.30 % 2.69 %
AOL Mail	4893 4535	3830 3449	973 974	106 125	78.28 % 76.05 %	19.89 % 21.48 %	2.17 % 2.76 %
Mail.com	4597 4907	3631 3833	872 968	102 132	78.99 % 78.11 %	18.97 % 19.73 %	2.22 % 2.69 %
Yandex Mail	4643 4613	3588 3537	961 998	105 124	77.28 % 76.67 %	20.70 % 21.63 %	2.26 % 2.69 %
GMX Mail	4647 4605	3593 3458	965 1035	108 120	77.32 % 75.09 %	20.77 % 22.48 %	2.32 % 2.61 %
Zoho Mail	4696 4846	3688 3797	912 942	108 131	78.53 % 78.35 %	19.42 % 19.44 %	2.30 % 2.70 %
ProtonMail	4871 4526	3895 3603	865 831	112 119	79.96 % 79.61 %	17.76 % 18.36 %	2.30 % 2.63 %
Custom Mail	4628 4773	3738 3794	798 872	102 127	80.77 % 79.49 %	17.24 % 18.27 %	2.20 % 2.66 %
iCloud Mail	4756 4641	3559 3480	1088 1075	119 133	74.83 % 74.98 %	22.88 % 23.16 %	2.50 % 2.87 %
Tuta	4809 4650	3810 3667	895 877	120 128	79.23 % 78.86 %	18.61 % 18.86 %	2.50 % 2.75 %
Juno.com	4601 4577	3672 3615	817 858	109 118	79.81 % 78.98 %	17.76 % 18.75 %	2.37 % 2.58 %
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.