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
66.036 66.103	49.737 50.487	14.491 13.951	1.808 1.665

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 (%)
75.32 % 76.38 %	21.94 % 21.10 %	2.74 % 2.52 %

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

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

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.