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
66.270 65.852	49.732 49.870	14.713 14.151	1.825 1.831

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

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

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

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.