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
77.005 76.208	58.115 59.446	16.752 15.216	2.138 1.546

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 (%)
75.47 % 78.00 %	21.75 % 19.97 %	2.78 % 2.03 %

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	6185 5962	4653 4609	1353 1237	179 116	75.23 % 77.31 %	21.88 % 20.75 %	2.89 % 1.95 %
Elektronics	5641 5746	4262 4487	1208 1135	171 124	75.55 % 78.09 %	21.41 % 19.75 %	3.03 % 2.16 %
Entertainment	5966 5767	4517 4475	1290 1177	159 115	75.71 % 77.60 %	21.62 % 20.41 %	2.67 % 1.99 %
Cosmetics & Beauty	5704 5867	4340 4599	1214 1151	150 117	76.09 % 78.39 %	21.28 % 19.62 %	2.63 % 1.99 %
Food & Drink	6036 5848	4522 4519	1336 1222	178 107	74.92 % 77.27 %	22.13 % 20.90 %	2.95 % 1.83 %
Home & Garden	5952 5964	4433 4638	1355 1204	164 122	74.48 % 77.77 %	22.77 % 20.19 %	2.76 % 2.05 %
Finance	5847 6130	4638 4988	1058 1017	151 125	79.32 % 81.37 %	18.09 % 16.59 %	2.58 % 2.04 %
Health	5799 5936	4532 4850	1110 963	157 123	78.15 % 81.70 %	19.14 % 16.22 %	2.71 % 2.07 %
Pets	5771 6013	4334 4653	1284 1238	153 122	75.10 % 77.38 %	22.25 % 20.59 %	2.65 % 2.03 %
Sport & Fitness	5974 5783	4502 4507	1302 1161	170 115	75.36 % 77.94 %	21.79 % 20.08 %	2.85 % 1.99 %
Job & Career	5898 5694	4328 4272	1403 1306	167 116	73.38 % 75.03 %	23.79 % 22.94 %	2.83 % 2.04 %
Dating	6064 5757	4326 4271	1578 1375	160 111	71.34 % 74.19 %	26.02 % 23.88 %	2.64 % 1.93 %
Other	6168 5741	4728 4578	1261 1030	179 133	76.65 % 79.74 %	20.44 % 17.94 %	2.90 % 2.32 %

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	5714 5221	4156 3883	1400 1236	158 102	72.73 % 74.37 %	24.50 % 23.67 %	2.77 % 1.95 %
Outlook Mail	5494 5281	4066 4016	1273 1158	155 107	74.01 % 76.05 %	23.17 % 21.93 %	2.82 % 2.03 %
Yahoo Mail	5514 5483	4084 4202	1272 1170	158 111	74.07 % 76.64 %	23.07 % 21.34 %	2.87 % 2.02 %
AOL Mail	5520 5582	4135 4329	1240 1136	145 117	74.91 % 77.55 %	22.46 % 20.35 %	2.63 % 2.10 %
Mail.com	5466 5748	4168 4587	1150 1051	148 110	76.25 % 79.80 %	21.04 % 18.28 %	2.71 % 1.91 %
Yandex Mail	5488 5529	4136 4238	1215 1173	137 118	75.36 % 76.65 %	22.14 % 21.22 %	2.50 % 2.13 %
GMX Mail	5433 5207	4019 3936	1266 1164	148 107	73.97 % 75.59 %	23.30 % 22.35 %	2.72 % 2.05 %
Zoho Mail	5493 5432	4196 4256	1142 1070	155 106	76.39 % 78.35 %	20.79 % 19.70 %	2.82 % 1.95 %
ProtonMail	5582 5417	4346 4360	1080 958	156 99	77.86 % 80.49 %	19.35 % 17.69 %	2.79 % 1.83 %
Custom Mail	5204 5335	4064 4329	991 889	149 117	78.09 % 81.14 %	19.04 % 16.66 %	2.86 % 2.19 %
iCloud Mail	5619 5272	4011 3941	1444 1219	164 112	71.38 % 74.75 %	25.70 % 23.12 %	2.92 % 2.12 %
Tuta	5664 5623	4405 4510	1097 999	162 114	77.77 % 80.21 %	19.37 % 17.77 %	2.86 % 2.03 %
Juno.com	5290 5731	4060 4578	1079 1029	151 124	76.75 % 79.88 %	20.40 % 17.95 %	2.85 % 2.16 %
Mailfence	5524 5347	4269 4281	1103 964	152 102	77.28 % 80.06 %	19.97 % 18.03 %	2.75 % 1.91 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.