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
76.796 77.364	58.531 60.340	16.313 15.418	1.952 1.606

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 (%)
76.22 % 77.99 %	21.24 % 19.93 %	2.54 % 2.08 %

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	6096 6125	4639 4737	1298 1265	159 123	76.10 % 77.34 %	21.29 % 20.65 %	2.61 % 2.01 %
Elektronics	5759 5829	4393 4554	1211 1152	155 123	76.28 % 78.13 %	21.03 % 19.76 %	2.69 % 2.11 %
Entertainment	5912 5939	4526 4607	1239 1218	147 114	76.56 % 77.57 %	20.96 % 20.51 %	2.49 % 1.92 %
Cosmetics & Beauty	5686 5972	4358 4699	1187 1157	141 116	76.64 % 78.68 %	20.88 % 19.37 %	2.48 % 1.94 %
Food & Drink	5971 5914	4533 4591	1272 1211	166 112	75.92 % 77.63 %	21.30 % 20.48 %	2.78 % 1.89 %
Home & Garden	5924 6083	4444 4729	1327 1227	153 127	75.02 % 77.74 %	22.40 % 20.17 %	2.58 % 2.09 %
Finance	5801 5980	4612 4887	1048 957	141 136	79.50 % 81.72 %	18.07 % 16.00 %	2.43 % 2.27 %
Health	5676 6023	4496 4892	1041 1009	139 122	79.21 % 81.22 %	18.34 % 16.75 %	2.45 % 2.03 %
Pets	5863 6058	4473 4677	1244 1257	146 124	76.29 % 77.20 %	21.22 % 20.75 %	2.49 % 2.05 %
Sport & Fitness	5981 5761	4518 4496	1311 1142	152 123	75.54 % 78.04 %	21.92 % 19.82 %	2.54 % 2.14 %
Job & Career	5911 5954	4393 4491	1366 1339	152 124	74.32 % 75.43 %	23.11 % 22.49 %	2.57 % 2.08 %
Dating	6055 5963	4357 4403	1553 1436	145 124	71.96 % 73.84 %	25.65 % 24.08 %	2.39 % 2.08 %
Other	6161 5763	4789 4577	1216 1048	156 138	77.73 % 79.42 %	19.74 % 18.18 %	2.53 % 2.39 %

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	5507 5361	4008 3973	1360 1270	139 118	72.78 % 74.11 %	24.70 % 23.69 %	2.52 % 2.20 %
Outlook Mail	5624 5479	4190 4166	1294 1206	140 107	74.50 % 76.04 %	23.01 % 22.01 %	2.49 % 1.95 %
Yahoo Mail	5392 5570	4028 4261	1222 1199	142 110	74.70 % 76.50 %	22.66 % 21.53 %	2.63 % 1.97 %
AOL Mail	5396 5446	4057 4213	1210 1110	129 123	75.19 % 77.36 %	22.42 % 20.38 %	2.39 % 2.26 %
Mail.com	5505 5653	4255 4514	1113 1027	137 112	77.29 % 79.85 %	20.22 % 18.17 %	2.49 % 1.98 %
Yandex Mail	5633 5609	4298 4327	1205 1168	130 114	76.30 % 77.14 %	21.39 % 20.82 %	2.31 % 2.03 %
GMX Mail	5505 5412	4118 4097	1255 1202	132 113	74.80 % 75.70 %	22.80 % 22.21 %	2.40 % 2.09 %
Zoho Mail	5405 5461	4188 4290	1074 1060	143 111	77.48 % 78.56 %	19.87 % 19.41 %	2.65 % 2.03 %
ProtonMail	5571 5591	4377 4497	1049 986	145 108	78.57 % 80.43 %	18.83 % 17.64 %	2.60 % 1.93 %
Custom Mail	5241 5358	4131 4335	966 915	144 108	78.82 % 80.91 %	18.43 % 17.08 %	2.75 % 2.02 %
iCloud Mail	5680 5528	4096 4107	1434 1298	150 123	72.11 % 74.29 %	25.25 % 23.48 %	2.64 % 2.23 %
Tuta	5624 5765	4448 4608	1024 1039	152 118	79.09 % 79.93 %	18.21 % 18.02 %	2.70 % 2.05 %
Juno.com	5360 5695	4161 4582	1066 982	133 131	77.63 % 80.46 %	19.89 % 17.24 %	2.48 % 2.30 %
Mailfence	5353 5436	4176 4370	1041 956	136 110	78.01 % 80.39 %	19.45 % 17.59 %	2.54 % 2.02 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.