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
76.915 76.798	58.159 59.444	16.629 15.641	2.127 1.713

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 (%)
75.61 % 77.40 %	21.62 % 20.37 %	2.77 % 2.23 %

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	6114 6023	4603 4621	1336 1271	175 131	75.29 % 76.72 %	21.85 % 21.10 %	2.86 % 2.17 %
Elektronics	5727 5836	4319 4530	1237 1176	171 130	75.41 % 77.62 %	21.60 % 20.15 %	2.99 % 2.23 %
Entertainment	5928 5800	4505 4456	1263 1225	160 119	76.00 % 76.83 %	21.31 % 21.12 %	2.70 % 2.05 %
Cosmetics & Beauty	5686 5908	4333 4597	1202 1184	151 127	76.20 % 77.81 %	21.14 % 20.04 %	2.66 % 2.15 %
Food & Drink	6029 5933	4542 4555	1310 1256	177 122	75.34 % 76.77 %	21.73 % 21.17 %	2.94 % 2.06 %
Home & Garden	5919 6024	4427 4641	1327 1249	165 134	74.79 % 77.04 %	22.42 % 20.73 %	2.79 % 2.22 %
Finance	5822 6100	4623 4945	1048 1013	151 142	79.41 % 81.07 %	18.00 % 16.61 %	2.59 % 2.33 %
Health	5742 6121	4494 4955	1093 1027	155 139	78.27 % 80.95 %	19.04 % 16.78 %	2.70 % 2.27 %
Pets	5837 6016	4411 4606	1270 1275	156 135	75.57 % 76.56 %	21.76 % 21.19 %	2.67 % 2.24 %
Sport & Fitness	5959 5696	4485 4426	1305 1145	169 125	75.26 % 77.70 %	21.90 % 20.10 %	2.84 % 2.19 %
Job & Career	5969 5828	4390 4344	1414 1351	165 133	73.55 % 74.54 %	23.69 % 23.18 %	2.76 % 2.28 %
Dating	6086 5816	4336 4275	1589 1409	161 132	71.25 % 73.50 %	26.11 % 24.23 %	2.65 % 2.27 %
Other	6097 5697	4691 4493	1235 1060	171 144	76.94 % 78.87 %	20.26 % 18.61 %	2.80 % 2.53 %

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	5594 5291	4047 3899	1389 1274	158 118	72.35 % 73.69 %	24.83 % 24.08 %	2.82 % 2.23 %
Outlook Mail	5617 5439	4164 4102	1300 1216	153 121	74.13 % 75.42 %	23.14 % 22.36 %	2.72 % 2.22 %
Yahoo Mail	5486 5571	4073 4230	1257 1222	156 119	74.24 % 75.93 %	22.91 % 21.94 %	2.84 % 2.14 %
AOL Mail	5505 5502	4127 4233	1232 1137	146 132	74.97 % 76.94 %	22.38 % 20.67 %	2.65 % 2.40 %
Mail.com	5447 5715	4168 4517	1131 1074	148 124	76.52 % 79.04 %	20.76 % 18.79 %	2.72 % 2.17 %
Yandex Mail	5546 5557	4197 4241	1215 1193	134 123	75.68 % 76.32 %	21.91 % 21.47 %	2.42 % 2.21 %
GMX Mail	5485 5337	4068 4004	1275 1212	142 121	74.17 % 75.02 %	23.25 % 22.71 %	2.59 % 2.27 %
Zoho Mail	5364 5427	4118 4225	1094 1085	152 117	76.77 % 77.85 %	20.40 % 19.99 %	2.83 % 2.16 %
ProtonMail	5613 5458	4375 4373	1078 975	160 110	77.94 % 80.12 %	19.21 % 17.86 %	2.85 % 2.02 %
Custom Mail	5239 5333	4086 4300	999 914	154 119	77.99 % 80.63 %	19.07 % 17.14 %	2.94 % 2.23 %
iCloud Mail	5587 5380	3997 3973	1429 1279	161 128	71.54 % 73.85 %	25.58 % 23.77 %	2.88 % 2.38 %
Tuta	5710 5717	4463 4544	1082 1046	165 127	78.16 % 79.48 %	18.95 % 18.30 %	2.89 % 2.22 %
Juno.com	5302 5712	4078 4540	1076 1033	148 139	76.91 % 79.48 %	20.29 % 18.08 %	2.79 % 2.43 %
Mailfence	5420 5359	4198 4263	1072 981	150 115	77.45 % 79.55 %	19.78 % 18.31 %	2.77 % 2.15 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.