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
65.852 66.270	49.870 49.732	14.151 14.713	1.831 1.825

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 (%)
75.73 % 75.04 %	21.49 % 22.20 %	2.78 % 2.75 %

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	4975 5161	3735 3853	1093 1166	147 142	75.08 % 74.66 %	21.97 % 22.59 %	2.95 % 2.75 %
Elektronics	5013 4919	3808 3684	1072 1096	133 139	75.96 % 74.89 %	21.38 % 22.28 %	2.65 % 2.83 %
Entertainment	5191 5074	3918 3837	1130 1108	143 129	75.48 % 75.62 %	21.77 % 21.84 %	2.75 % 2.54 %
Cosmetics & Beauty	5249 5010	3970 3781	1140 1100	139 129	75.63 % 75.47 %	21.72 % 21.96 %	2.65 % 2.57 %
Food & Drink	5000 5249	3762 3892	1109 1211	129 146	75.24 % 74.15 %	22.18 % 23.07 %	2.58 % 2.78 %
Home & Garden	4940 5026	3732 3721	1070 1161	138 144	75.55 % 74.04 %	21.66 % 23.10 %	2.79 % 2.87 %
Finance	5044 5013	4011 3974	884 907	149 132	79.52 % 79.27 %	17.53 % 18.09 %	2.95 % 2.63 %
Health	4973 5091	3925 4000	909 958	139 133	78.93 % 78.57 %	18.28 % 18.82 %	2.80 % 2.61 %
Pets	5123 5099	3874 3796	1104 1160	145 143	75.62 % 74.45 %	21.55 % 22.75 %	2.83 % 2.80 %
Sport & Fitness	5167 5198	3923 3885	1099 1168	145 145	75.92 % 74.74 %	21.27 % 22.47 %	2.81 % 2.79 %
Job & Career	5053 5173	3688 3762	1236 1267	129 144	72.99 % 72.72 %	24.46 % 24.49 %	2.55 % 2.78 %
Dating	4989 5160	3562 3657	1285 1357	142 146	71.40 % 70.87 %	25.76 % 26.30 %	2.85 % 2.83 %
Other	5135 5097	3962 3890	1020 1054	153 153	77.16 % 76.32 %	19.86 % 20.68 %	2.98 % 3.00 %

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	4661 4853	3403 3466	1140 1250	118 137	73.01 % 71.42 %	24.46 % 25.76 %	2.53 % 2.82 %
Outlook Mail	4542 4676	3334 3438	1076 1110	132 128	73.40 % 73.52 %	23.69 % 23.74 %	2.91 % 2.74 %
Yahoo Mail	4750 4671	3536 3475	1078 1060	136 136	74.44 % 74.40 %	22.69 % 22.69 %	2.86 % 2.91 %
AOL Mail	4611 4862	3443 3626	1035 1105	133 131	74.67 % 74.58 %	22.45 % 22.73 %	2.88 % 2.69 %
Mail.com	4915 4623	3772 3525	1008 976	135 122	76.74 % 76.25 %	20.51 % 21.11 %	2.75 % 2.64 %
Yandex Mail	4699 4795	3509 3572	1063 1101	127 122	74.68 % 74.49 %	22.62 % 22.96 %	2.70 % 2.54 %
GMX Mail	4698 4634	3479 3410	1089 1098	130 126	74.05 % 73.59 %	23.18 % 23.69 %	2.77 % 2.72 %
Zoho Mail	4864 4727	3739 3577	987 1021	138 129	76.87 % 75.67 %	20.29 % 21.60 %	2.84 % 2.73 %
ProtonMail	4644 4841	3616 3750	900 958	128 133	77.86 % 77.46 %	19.38 % 19.79 %	2.76 % 2.75 %
Custom Mail	4787 4458	3739 3464	918 878	130 116	78.11 % 77.70 %	19.18 % 19.69 %	2.72 % 2.60 %
iCloud Mail	4580 4921	3334 3505	1110 1269	136 147	72.79 % 71.23 %	24.24 % 25.79 %	2.97 % 2.99 %
Tuta	4732 4834	3672 3701	923 992	137 141	77.60 % 76.56 %	19.51 % 20.52 %	2.90 % 2.92 %
Juno.com	4659 4628	3633 3560	902 937	124 131	77.98 % 76.92 %	19.36 % 20.25 %	2.66 % 2.83 %
Mailfence	4710 4747	3661 3663	922 958	127 126	77.73 % 77.16 %	19.58 % 20.18 %	2.70 % 2.65 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.