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
76.660 77.301	58.836 59.644	15.978 15.881	1.846 1.776

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 (%)
76.75 % 77.16 %	20.84 % 20.54 %	2.41 % 2.30 %

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	5917 6223	4510 4769	1258 1314	149 140	76.22 % 76.64 %	21.26 % 21.12 %	2.52 % 2.25 %
Elektronics	5909 5871	4546 4570	1212 1167	151 134	76.93 % 77.84 %	20.51 % 19.88 %	2.56 % 2.28 %
Entertainment	5926 5960	4538 4591	1244 1247	144 122	76.58 % 77.03 %	20.99 % 20.92 %	2.43 % 2.05 %
Cosmetics & Beauty	5802 5909	4486 4594	1178 1189	138 126	77.32 % 77.75 %	20.30 % 20.12 %	2.38 % 2.13 %
Food & Drink	5980 5893	4579 4518	1243 1249	158 126	76.57 % 76.67 %	20.79 % 21.19 %	2.64 % 2.14 %
Home & Garden	5907 6020	4456 4626	1308 1255	143 139	75.44 % 76.84 %	22.14 % 20.85 %	2.42 % 2.31 %
Finance	5841 5866	4672 4707	1038 1016	131 143	79.99 % 80.24 %	17.77 % 17.32 %	2.24 % 2.44 %
Health	5657 6028	4508 4852	1017 1041	132 135	79.69 % 80.49 %	17.98 % 17.27 %	2.33 % 2.24 %
Pets	5830 6083	4460 4634	1235 1310	135 139	76.50 % 76.18 %	21.18 % 21.54 %	2.32 % 2.29 %
Sport & Fitness	5961 5716	4542 4412	1278 1165	141 139	76.20 % 77.19 %	21.44 % 20.38 %	2.37 % 2.43 %
Job & Career	5839 5918	4386 4407	1313 1369	140 142	75.12 % 74.47 %	22.49 % 23.13 %	2.40 % 2.40 %
Dating	6056 5907	4410 4330	1508 1439	138 138	72.82 % 73.30 %	24.90 % 24.36 %	2.28 % 2.34 %
Other	6035 5907	4743 4634	1146 1120	146 153	78.59 % 78.45 %	18.99 % 18.96 %	2.42 % 2.59 %

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	5467 5360	4008 3949	1328 1278	131 133	73.31 % 73.68 %	24.29 % 23.84 %	2.40 % 2.48 %
Outlook Mail	5577 5461	4175 4108	1269 1232	133 121	74.86 % 75.22 %	22.75 % 22.56 %	2.38 % 2.22 %
Yahoo Mail	5411 5550	4091 4209	1187 1223	133 118	75.61 % 75.84 %	21.94 % 22.04 %	2.46 % 2.13 %
AOL Mail	5339 5429	4038 4148	1181 1153	120 128	75.63 % 76.40 %	22.12 % 21.24 %	2.25 % 2.36 %
Mail.com	5498 5528	4270 4361	1102 1042	126 125	77.66 % 78.89 %	20.04 % 18.85 %	2.29 % 2.26 %
Yandex Mail	5591 5569	4294 4255	1173 1192	124 122	76.80 % 76.41 %	20.98 % 21.40 %	2.22 % 2.19 %
GMX Mail	5506 5418	4150 4051	1231 1244	125 123	75.37 % 74.77 %	22.36 % 22.96 %	2.27 % 2.27 %
Zoho Mail	5437 5521	4246 4308	1058 1088	133 125	78.09 % 78.03 %	19.46 % 19.71 %	2.45 % 2.26 %
ProtonMail	5602 5639	4433 4482	1028 1032	141 125	79.13 % 79.48 %	18.35 % 18.30 %	2.52 % 2.22 %
Custom Mail	5239 5386	4162 4313	939 957	138 116	79.44 % 80.08 %	17.92 % 17.77 %	2.63 % 2.15 %
iCloud Mail	5718 5534	4161 4043	1415 1354	142 137	72.77 % 73.06 %	24.75 % 24.47 %	2.48 % 2.48 %
Tuta	5482 5675	4357 4483	983 1062	142 130	79.48 % 79.00 %	17.93 % 18.71 %	2.59 % 2.29 %
Juno.com	5379 5728	4209 4584	1042 998	128 146	78.25 % 80.03 %	19.37 % 17.42 %	2.38 % 2.55 %
Mailfence	5414 5503	4242 4350	1042 1026	130 127	78.35 % 79.05 %	19.25 % 18.64 %	2.40 % 2.31 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.