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
66.103 66.036	50.487 49.737	13.951 14.491	1.665 1.808

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 (%)
76.38 % 75.32 %	21.10 % 21.94 %	2.52 % 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	4977 5214	3771 3908	1072 1158	134 148	75.77 % 74.95 %	21.54 % 22.21 %	2.69 % 2.84 %
Elektronics	5009 4850	3852 3642	1040 1071	117 137	76.90 % 75.09 %	20.76 % 22.08 %	2.34 % 2.82 %
Entertainment	5116 5119	3886 3884	1101 1102	129 133	75.96 % 75.87 %	21.52 % 21.53 %	2.52 % 2.60 %
Cosmetics & Beauty	5279 4924	4045 3722	1107 1074	127 128	76.62 % 75.59 %	20.97 % 21.81 %	2.41 % 2.60 %
Food & Drink	5001 5217	3781 3868	1105 1204	115 145	75.60 % 74.14 %	22.10 % 23.08 %	2.30 % 2.78 %
Home & Garden	4977 5102	3791 3787	1055 1175	131 140	76.17 % 74.23 %	21.20 % 23.03 %	2.63 % 2.74 %
Finance	5118 5016	4100 3975	886 910	132 131	80.11 % 79.25 %	17.31 % 18.14 %	2.58 % 2.61 %
Health	4975 5061	3935 3985	919 942	121 134	79.10 % 78.74 %	18.47 % 18.61 %	2.43 % 2.65 %
Pets	5134 4986	3913 3735	1088 1118	133 133	76.22 % 74.91 %	21.19 % 22.42 %	2.59 % 2.67 %
Sport & Fitness	5185 5033	3982 3800	1073 1091	130 142	76.80 % 75.50 %	20.69 % 21.68 %	2.51 % 2.82 %
Job & Career	5080 5166	3747 3782	1217 1241	116 143	73.76 % 73.21 %	23.96 % 24.02 %	2.28 % 2.77 %
Dating	5024 5130	3611 3669	1280 1321	133 140	71.88 % 71.52 %	25.48 % 25.75 %	2.65 % 2.73 %
Other	5228 5218	4073 3980	1008 1084	147 154	77.91 % 76.27 %	19.28 % 20.77 %	2.81 % 2.95 %

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	4685 4899	3432 3520	1143 1243	110 136	73.26 % 71.85 %	24.40 % 25.37 %	2.35 % 2.78 %
Outlook Mail	4657 4615	3475 3424	1060 1064	122 127	74.62 % 74.19 %	22.76 % 23.06 %	2.62 % 2.75 %
Yahoo Mail	4781 4657	3598 3468	1056 1056	127 133	75.26 % 74.47 %	22.09 % 22.68 %	2.66 % 2.86 %
AOL Mail	4607 4765	3480 3549	1009 1089	118 127	75.54 % 74.48 %	21.90 % 22.85 %	2.56 % 2.67 %
Mail.com	4835 4684	3743 3584	970 978	122 122	77.41 % 76.52 %	20.06 % 20.88 %	2.52 % 2.60 %
Yandex Mail	4750 4694	3572 3508	1061 1065	117 121	75.20 % 74.73 %	22.34 % 22.69 %	2.46 % 2.58 %
GMX Mail	4776 4692	3573 3470	1083 1095	120 127	74.81 % 73.96 %	22.68 % 23.34 %	2.51 % 2.71 %
Zoho Mail	4790 4739	3709 3596	958 1013	123 130	77.43 % 75.88 %	20.00 % 21.38 %	2.57 % 2.74 %
ProtonMail	4614 4851	3613 3774	886 943	115 134	78.31 % 77.80 %	19.20 % 19.44 %	2.49 % 2.76 %
Custom Mail	4741 4470	3725 3477	904 874	112 119	78.57 % 77.79 %	19.07 % 19.55 %	2.36 % 2.66 %
iCloud Mail	4652 4787	3421 3429	1108 1219	123 139	73.54 % 71.63 %	23.82 % 25.46 %	2.64 % 2.90 %
Tuta	4813 4825	3776 3728	916 960	121 137	78.45 % 77.26 %	19.03 % 19.90 %	2.51 % 2.84 %
Juno.com	4717 4597	3703 3525	897 942	117 130	78.50 % 76.68 %	19.02 % 20.49 %	2.48 % 2.83 %
Mailfence	4685 4761	3667 3685	900 950	118 126	78.27 % 77.40 %	19.21 % 19.95 %	2.52 % 2.65 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.