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
64.456 63.445	51.232 50.822	12.207 11.778	1.447 1.354

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 (%)
79.48 % 80.10 %	18.94 % 18.56 %	2.24 % 2.13 %

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	4838 4784	3818 3827	949 896	104 102	78.92 % 80.00 %	19.62 % 18.73 %	2.15 % 2.13 %
Elektronics	5000 4743	3966 3808	937 875	111 101	79.32 % 80.29 %	18.74 % 18.45 %	2.22 % 2.13 %
Entertainment	4804 5083	3820 4042	908 963	104 120	79.52 % 79.52 %	18.90 % 18.95 %	2.16 % 2.36 %
Cosmetics & Beauty	5054 4728	4039 3806	942 876	106 96	79.92 % 80.50 %	18.64 % 18.53 %	2.10 % 2.03 %
Food & Drink	5071 4798	4017 3836	974 913	117 93	79.22 % 79.95 %	19.21 % 19.03 %	2.31 % 1.94 %
Home & Garden	5106 4796	4034 3857	997 863	117 104	79.01 % 80.42 %	19.53 % 17.99 %	2.29 % 2.17 %
Finance	4930 4978	4057 4085	795 845	110 103	82.29 % 82.06 %	16.13 % 16.97 %	2.23 % 2.07 %
Health	4996 4709	4104 3895	815 721	108 98	82.15 % 82.71 %	16.31 % 15.31 %	2.16 % 2.08 %
Pets	4837 4983	3817 3962	954 938	113 113	78.91 % 79.51 %	19.72 % 18.82 %	2.34 % 2.27 %
Sport & Fitness	4943 5096	3899 4048	961 976	111 108	78.88 % 79.43 %	19.44 % 19.15 %	2.25 % 2.12 %
Job & Career	5131 4854	4005 3814	1041 983	112 101	78.05 % 78.57 %	20.29 % 20.25 %	2.18 % 2.08 %
Dating	4758 4857	3634 3741	1053 1049	110 103	76.38 % 77.02 %	22.13 % 21.60 %	2.31 % 2.12 %
Other	4988 5036	4022 4101	881 880	124 112	80.63 % 81.43 %	17.66 % 17.47 %	2.49 % 2.22 %

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	4760 4638	3677 3591	998 1000	103 93	77.25 % 77.43 %	20.97 % 21.56 %	2.16 % 2.01 %
Outlook Mail	4626 4562	3627 3585	927 909	104 101	78.40 % 78.58 %	20.04 % 19.93 %	2.25 % 2.21 %
Yahoo Mail	4532 4625	3628 3657	831 908	101 101	80.05 % 79.07 %	18.34 % 19.63 %	2.23 % 2.18 %
AOL Mail	4780 4633	3790 3688	923 873	101 95	79.29 % 79.60 %	19.31 % 18.84 %	2.11 % 2.05 %
Mail.com	4596 4620	3690 3772	839 766	100 97	80.29 % 81.65 %	18.26 % 16.58 %	2.18 % 2.10 %
Yandex Mail	4673 4706	3696 3758	917 882	111 101	79.09 % 79.86 %	19.62 % 18.74 %	2.38 % 2.15 %
GMX Mail	4736 4690	3738 3679	914 928	109 111	78.93 % 78.44 %	19.30 % 19.79 %	2.30 % 2.37 %
Zoho Mail	4798 4704	3835 3835	896 817	107 99	79.93 % 81.53 %	18.67 % 17.37 %	2.23 % 2.10 %
ProtonMail	4839 4536	3916 3702	831 801	107 94	80.93 % 81.61 %	17.17 % 17.66 %	2.21 % 2.07 %
Custom Mail	4720 4667	3865 3866	801 748	101 103	81.89 % 82.84 %	16.97 % 16.03 %	2.14 % 2.21 %
iCloud Mail	4771 4614	3666 3582	1030 966	118 99	76.84 % 77.63 %	21.59 % 20.94 %	2.47 % 2.15 %
Tuta	4800 4645	3868 3785	871 801	115 99	80.58 % 81.49 %	18.15 % 17.24 %	2.40 % 2.13 %
Juno.com	4639 4779	3747 3901	802 834	100 101	80.77 % 81.63 %	17.29 % 17.45 %	2.16 % 2.11 %
Mailfence	3186 3026	2489 2421	627 545	70 60	78.12 % 80.01 %	19.68 % 18.01 %	2.20 % 1.98 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.