Amazon SES and Postmark Email Deliverability Comparison

Amazon SES

Postmark

In this comparison, the deliverability of Amazon SES and Postmark 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 Postmark than for Amazon SES.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
66.041 64.919	49.987 50.483	14.393 13.108	1.661 1.328

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. Postmark beats Amazon SES in this comparison.

Inbox (%)	Spam (%)	Lost (%)
75.69 % 77.76 %	21.79 % 20.19 %	2.52 % 2.05 %

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, Postmark is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	5176 4961	3891 3834	1157 1029	128 98	75.17 % 77.28 %	22.35 % 20.74 %	2.47 % 1.98 %
Elektronics	4959 4886	3758 3792	1073 995	128 99	75.78 % 77.61 %	21.64 % 20.36 %	2.58 % 2.03 %
Entertainment	5013 5077	3809 3911	1089 1056	115 110	75.98 % 77.03 %	21.72 % 20.80 %	2.29 % 2.17 %
Cosmetics & Beauty	5082 4939	3884 3857	1083 987	115 95	76.43 % 78.09 %	21.31 % 19.98 %	2.26 % 1.92 %
Food & Drink	5138 5041	3866 3880	1142 1060	130 101	75.24 % 76.97 %	22.23 % 21.03 %	2.53 % 2.00 %
Home & Garden	5077 4911	3810 3830	1135 976	132 105	75.04 % 77.99 %	22.36 % 19.87 %	2.60 % 2.14 %
Finance	5091 5187	4065 4202	896 882	130 103	79.85 % 81.01 %	17.60 % 17.00 %	2.55 % 1.99 %
Health	5068 4990	4017 4089	926 799	125 102	79.26 % 81.94 %	18.27 % 16.01 %	2.47 % 2.04 %
Pets	5058 5064	3791 3908	1140 1048	127 108	74.95 % 77.17 %	22.54 % 20.70 %	2.51 % 2.13 %
Sport & Fitness	5116 4964	3846 3838	1137 1030	133 96	75.18 % 77.32 %	22.22 % 20.75 %	2.60 % 1.93 %
Job & Career	5150 4917	3767 3695	1254 1123	129 99	73.15 % 75.15 %	24.35 % 22.84 %	2.50 % 2.01 %
Dating	5017 4963	3560 3653	1324 1210	133 100	70.96 % 73.60 %	26.39 % 24.38 %	2.65 % 2.01 %
Other	5096 5019	3923 3994	1037 913	136 112	76.98 % 79.58 %	20.35 % 18.19 %	2.67 % 2.23 %

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, Postmark is better than Amazon SES.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4870 4490	3514 3294	1235 1111	121 85	72.16 % 73.36 %	25.36 % 24.74 %	2.48 % 1.89 %
Outlook Mail	4676 4554	3471 3450	1085 1009	120 95	74.23 % 75.76 %	23.20 % 22.16 %	2.57 % 2.09 %
Yahoo Mail	4648 4733	3511 3613	1016 1022	121 98	75.54 % 76.34 %	21.86 % 21.59 %	2.60 % 2.07 %
AOL Mail	4816 4753	3634 3652	1067 1003	115 98	75.46 % 76.84 %	22.16 % 21.10 %	2.39 % 2.06 %
Mail.com	4564 4829	3498 3857	956 871	110 101	76.64 % 79.87 %	20.95 % 18.04 %	2.41 % 2.09 %
Yandex Mail	4786 4621	3583 3537	1090 990	113 94	74.86 % 76.54 %	22.77 % 21.42 %	2.36 % 2.03 %
GMX Mail	4640 4662	3440 3517	1080 1045	120 100	74.14 % 75.44 %	23.28 % 22.42 %	2.59 % 2.15 %
Zoho Mail	4693 4636	3563 3676	1013 865	117 95	75.92 % 79.29 %	21.59 % 18.66 %	2.49 % 2.05 %
ProtonMail	4856 4513	3783 3599	951 831	122 83	77.90 % 79.75 %	19.58 % 18.41 %	2.51 % 1.84 %
Custom Mail	4542 4622	3565 3768	868 751	109 103	78.49 % 81.52 %	19.11 % 16.25 %	2.40 % 2.23 %
iCloud Mail	4782 4550	3421 3366	1231 1091	130 93	71.54 % 73.98 %	25.74 % 23.98 %	2.72 % 2.04 %
Tuta	4850 4689	3751 3755	968 835	131 99	77.34 % 80.08 %	19.96 % 17.81 %	2.70 % 2.11 %
Juno.com	4636 4771	3609 3796	908 880	119 95	77.85 % 79.56 %	19.59 % 18.44 %	2.57 % 1.99 %
Mailfence	4682 4496	3644 3603	925 804	113 89	77.83 % 80.14 %	19.76 % 17.88 %	2.41 % 1.98 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.