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
66.270 65.027	49.732 50.616	14.713 13.085	1.825 1.326

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 (%)
75.04 % 77.84 %	22.20 % 20.12 %	2.75 % 2.04 %

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	5161 4970	3853 3843	1166 1033	142 94	74.66 % 77.32 %	22.59 % 20.78 %	2.75 % 1.89 %
Elektronics	4919 4862	3684 3785	1096 983	139 94	74.89 % 77.85 %	22.28 % 20.22 %	2.83 % 1.93 %
Entertainment	5074 4997	3837 3877	1108 1015	129 105	75.62 % 77.59 %	21.84 % 20.31 %	2.54 % 2.10 %
Cosmetics & Beauty	5010 4939	3781 3869	1100 976	129 94	75.47 % 78.34 %	21.96 % 19.76 %	2.57 % 1.90 %
Food & Drink	5249 5061	3892 3882	1211 1078	146 101	74.15 % 76.70 %	23.07 % 21.30 %	2.78 % 2.00 %
Home & Garden	5026 5067	3721 3946	1161 1012	144 109	74.04 % 77.88 %	23.10 % 19.97 %	2.87 % 2.15 %
Finance	5013 5190	3974 4199	907 884	132 107	79.27 % 80.91 %	18.09 % 17.03 %	2.63 % 2.06 %
Health	5091 4964	4000 4038	958 818	133 108	78.57 % 81.35 %	18.82 % 16.48 %	2.61 % 2.18 %
Pets	5099 5115	3796 3960	1160 1051	143 104	74.45 % 77.42 %	22.75 % 20.55 %	2.80 % 2.03 %
Sport & Fitness	5198 4997	3885 3891	1168 1008	145 98	74.74 % 77.87 %	22.47 % 20.17 %	2.79 % 1.96 %
Job & Career	5173 4970	3762 3720	1267 1149	144 101	72.72 % 74.85 %	24.49 % 23.12 %	2.78 % 2.03 %
Dating	5160 4915	3657 3632	1357 1185	146 98	70.87 % 73.90 %	26.30 % 24.11 %	2.83 % 1.99 %
Other	5097 4980	3890 3974	1054 893	153 113	76.32 % 79.80 %	20.68 % 17.93 %	3.00 % 2.27 %

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	4853 4525	3466 3346	1250 1094	137 85	71.42 % 73.94 %	25.76 % 24.18 %	2.82 % 1.88 %
Outlook Mail	4676 4546	3438 3464	1110 993	128 89	73.52 % 76.20 %	23.74 % 21.84 %	2.74 % 1.96 %
Yahoo Mail	4671 4730	3475 3610	1060 1018	136 102	74.40 % 76.32 %	22.69 % 21.52 %	2.91 % 2.16 %
AOL Mail	4862 4744	3626 3664	1105 980	131 100	74.58 % 77.23 %	22.73 % 20.66 %	2.69 % 2.11 %
Mail.com	4623 4897	3525 3912	976 888	122 97	76.25 % 79.89 %	21.11 % 18.13 %	2.64 % 1.98 %
Yandex Mail	4795 4667	3572 3569	1101 1003	122 95	74.49 % 76.47 %	22.96 % 21.49 %	2.54 % 2.04 %
GMX Mail	4634 4666	3410 3499	1098 1066	126 101	73.59 % 74.99 %	23.69 % 22.85 %	2.72 % 2.16 %
Zoho Mail	4727 4684	3577 3686	1021 906	129 92	75.67 % 78.69 %	21.60 % 19.34 %	2.73 % 1.96 %
ProtonMail	4841 4568	3750 3673	958 810	133 85	77.46 % 80.41 %	19.79 % 17.73 %	2.75 % 1.86 %
Custom Mail	4458 4630	3464 3781	878 744	116 105	77.70 % 81.66 %	19.69 % 16.07 %	2.60 % 2.27 %
iCloud Mail	4921 4587	3505 3396	1269 1093	147 98	71.23 % 74.04 %	25.79 % 23.83 %	2.99 % 2.14 %
Tuta	4834 4684	3701 3760	992 826	141 98	76.56 % 80.27 %	20.52 % 17.63 %	2.92 % 2.09 %
Juno.com	4628 4737	3560 3776	937 866	131 95	76.92 % 79.71 %	20.25 % 18.28 %	2.83 % 2.01 %
Mailfence	4747 4362	3663 3480	958 798	126 84	77.16 % 79.78 %	20.18 % 18.29 %	2.65 % 1.93 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.