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
66.195 65.137	49.906 50.600	14.478 13.149	1.811 1.388

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 (%)
75.39 % 77.68 %	21.87 % 20.19 %	2.74 % 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	5319 5071	3992 3914	1177 1056	150 101	75.05 % 77.18 %	22.13 % 20.82 %	2.82 % 1.99 %
Elektronics	4743 4882	3580 3796	1025 979	138 107	75.48 % 77.76 %	21.61 % 20.05 %	2.91 % 2.19 %
Entertainment	5189 4910	3919 3793	1133 1011	137 106	75.53 % 77.25 %	21.83 % 20.59 %	2.64 % 2.16 %
Cosmetics & Beauty	4842 5043	3673 3928	1047 1011	122 104	75.86 % 77.89 %	21.62 % 20.05 %	2.52 % 2.06 %
Food & Drink	5176 5038	3874 3866	1153 1075	149 97	74.85 % 76.74 %	22.28 % 21.34 %	2.88 % 1.93 %
Home & Garden	5130 5083	3815 3928	1172 1044	143 111	74.37 % 77.28 %	22.85 % 20.54 %	2.79 % 2.18 %
Finance	5025 5308	3974 4312	921 881	130 115	79.08 % 81.24 %	18.33 % 16.60 %	2.59 % 2.17 %
Health	5079 5000	3983 4060	960 830	136 110	78.42 % 81.20 %	18.90 % 16.60 %	2.68 % 2.20 %
Pets	4968 5137	3726 3965	1110 1063	132 109	75.00 % 77.19 %	22.34 % 20.69 %	2.66 % 2.12 %
Sport & Fitness	5085 4944	3829 3845	1114 997	142 102	75.30 % 77.77 %	21.91 % 20.17 %	2.79 % 2.06 %
Job & Career	5105 4922	3750 3676	1214 1142	141 104	73.46 % 74.69 %	23.78 % 23.20 %	2.76 % 2.11 %
Dating	5238 4871	3750 3605	1349 1165	139 101	71.59 % 74.01 %	25.75 % 23.92 %	2.65 % 2.07 %
Other	5296 4928	4041 3912	1103 895	152 121	76.30 % 79.38 %	20.83 % 18.16 %	2.87 % 2.46 %

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	4881 4479	3533 3323	1214 1062	134 94	72.38 % 74.19 %	24.87 % 23.71 %	2.75 % 2.10 %
Outlook Mail	4740 4531	3515 3444	1096 991	129 96	74.16 % 76.01 %	23.12 % 21.87 %	2.72 % 2.12 %
Yahoo Mail	4752 4597	3511 3508	1108 991	133 98	73.88 % 76.31 %	23.32 % 21.56 %	2.80 % 2.13 %
AOL Mail	4761 4857	3579 3756	1058 996	124 105	75.17 % 77.33 %	22.22 % 20.51 %	2.60 % 2.16 %
Mail.com	4663 4956	3553 3934	985 923	125 99	76.20 % 79.38 %	21.12 % 18.62 %	2.68 % 2.00 %
Yandex Mail	4708 4687	3534 3562	1056 1019	118 106	75.06 % 76.00 %	22.43 % 21.74 %	2.51 % 2.26 %
GMX Mail	4685 4506	3453 3390	1110 1018	122 98	73.70 % 75.23 %	23.69 % 22.59 %	2.60 % 2.17 %
Zoho Mail	4670 4645	3547 3625	992 924	131 96	75.95 % 78.04 %	21.24 % 19.89 %	2.81 % 2.07 %
ProtonMail	4822 4620	3765 3706	924 824	133 90	78.08 % 80.22 %	19.16 % 17.84 %	2.76 % 1.95 %
Custom Mail	4433 4614	3458 3728	853 781	122 105	78.01 % 80.80 %	19.24 % 16.93 %	2.75 % 2.28 %
iCloud Mail	4799 4518	3441 3365	1219 1052	139 101	71.70 % 74.48 %	25.40 % 23.28 %	2.90 % 2.24 %
Tuta	4878 4771	3785 3807	953 863	140 101	77.59 % 79.79 %	19.54 % 18.09 %	2.87 % 2.12 %
Juno.com	4576 4871	3501 3869	946 892	129 110	76.51 % 79.43 %	20.67 % 18.31 %	2.82 % 2.26 %
Mailfence	4827 4485	3731 3583	964 813	132 89	77.29 % 79.89 %	19.97 % 18.13 %	2.73 % 1.98 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.