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
66.195 66.282	49.906 50.632	14.478 13.969	1.811 1.681

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 (%)
75.39 % 76.39 %	21.87 % 21.08 %	2.74 % 2.54 %

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	5319 5057	3992 3831	1177 1082	150 144	75.05 % 75.76 %	22.13 % 21.40 %	2.82 % 2.85 %
Elektronics	4743 5044	3580 3852	1025 1074	138 118	75.48 % 76.37 %	21.61 % 21.29 %	2.91 % 2.34 %
Entertainment	5189 5084	3919 3854	1133 1103	137 127	75.53 % 75.81 %	21.83 % 21.70 %	2.64 % 2.50 %
Cosmetics & Beauty	4842 5338	3673 4100	1047 1107	122 131	75.86 % 76.81 %	21.62 % 20.74 %	2.52 % 2.45 %
Food & Drink	5176 5065	3874 3816	1153 1127	149 122	74.85 % 75.34 %	22.28 % 22.25 %	2.88 % 2.41 %
Home & Garden	5130 4893	3815 3720	1172 1040	143 133	74.37 % 76.03 %	22.85 % 21.25 %	2.79 % 2.72 %
Finance	5025 5137	3974 4115	921 891	130 131	79.08 % 80.11 %	18.33 % 17.34 %	2.59 % 2.55 %
Health	5079 4951	3983 3918	960 915	136 118	78.42 % 79.14 %	18.90 % 18.48 %	2.68 % 2.38 %
Pets	4968 5072	3726 3863	1110 1079	132 130	75.00 % 76.16 %	22.34 % 21.27 %	2.66 % 2.56 %
Sport & Fitness	5085 5207	3829 4012	1114 1066	142 129	75.30 % 77.05 %	21.91 % 20.47 %	2.79 % 2.48 %
Job & Career	5105 5172	3750 3821	1214 1232	141 119	73.46 % 73.88 %	23.78 % 23.82 %	2.76 % 2.30 %
Dating	5238 5040	3750 3645	1349 1258	139 137	71.59 % 72.32 %	25.75 % 24.96 %	2.65 % 2.72 %
Other	5296 5222	4041 4085	1103 995	152 142	76.30 % 78.23 %	20.83 % 19.05 %	2.87 % 2.72 %

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	4881 4720	3533 3466	1214 1142	134 112	72.38 % 73.43 %	24.87 % 24.19 %	2.75 % 2.37 %
Outlook Mail	4740 4670	3515 3471	1096 1081	129 118	74.16 % 74.33 %	23.12 % 23.15 %	2.72 % 2.53 %
Yahoo Mail	4752 4766	3511 3591	1108 1049	133 126	73.88 % 75.35 %	23.32 % 22.01 %	2.80 % 2.64 %
AOL Mail	4761 4630	3579 3488	1058 1026	124 116	75.17 % 75.33 %	22.22 % 22.16 %	2.60 % 2.51 %
Mail.com	4663 4843	3553 3741	985 983	125 119	76.20 % 77.25 %	21.12 % 20.30 %	2.68 % 2.46 %
Yandex Mail	4708 4819	3534 3636	1056 1069	118 114	75.06 % 75.45 %	22.43 % 22.18 %	2.51 % 2.37 %
GMX Mail	4685 4755	3453 3565	1110 1065	122 125	73.70 % 74.97 %	23.69 % 22.40 %	2.60 % 2.63 %
Zoho Mail	4670 4707	3547 3631	992 949	131 127	75.95 % 77.14 %	21.24 % 20.16 %	2.81 % 2.70 %
ProtonMail	4822 4638	3765 3624	924 892	133 122	78.08 % 78.14 %	19.16 % 19.23 %	2.76 % 2.63 %
Custom Mail	4433 4727	3458 3749	853 860	122 118	78.01 % 79.31 %	19.24 % 18.19 %	2.75 % 2.50 %
iCloud Mail	4799 4743	3441 3490	1219 1130	139 123	71.70 % 73.58 %	25.40 % 23.82 %	2.90 % 2.59 %
Tuta	4878 4845	3785 3787	953 938	140 120	77.59 % 78.16 %	19.54 % 19.36 %	2.87 % 2.48 %
Juno.com	4576 4791	3501 3767	946 901	129 123	76.51 % 78.63 %	20.67 % 18.81 %	2.82 % 2.57 %
Mailfence	4827 4628	3731 3626	964 884	132 118	77.29 % 78.35 %	19.97 % 19.10 %	2.73 % 2.55 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.