Constant Contact and Amazon SES Email Deliverability Comparison

Constant Contact

Amazon SES

In this comparison, the deliverability of Constant Contact and Amazon SES 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
66.282 66.195	50.632 49.906	13.969 14.478	1.681 1.811

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

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

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

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.