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
66.036 65.170	49.737 50.776	14.491 13.059	1.808 1.335

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 (%)
75.32 % 77.91 %	21.94 % 20.04 %	2.74 % 2.05 %

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	5214 5054	3908 3909	1158 1048	148 97	74.95 % 77.34 %	22.21 % 20.74 %	2.84 % 1.92 %
Elektronics	4850 4865	3642 3784	1071 983	137 98	75.09 % 77.78 %	22.08 % 20.21 %	2.82 % 2.01 %
Entertainment	5119 4883	3884 3811	1102 967	133 105	75.87 % 78.05 %	21.53 % 19.80 %	2.60 % 2.15 %
Cosmetics & Beauty	4924 5003	3722 3922	1074 985	128 96	75.59 % 78.39 %	21.81 % 19.69 %	2.60 % 1.92 %
Food & Drink	5217 5094	3868 3918	1204 1077	145 99	74.14 % 76.91 %	23.08 % 21.14 %	2.78 % 1.94 %
Home & Garden	5102 5052	3787 3925	1175 1016	140 111	74.23 % 77.69 %	23.03 % 20.11 %	2.74 % 2.20 %
Finance	5016 5254	3975 4268	910 882	131 104	79.25 % 81.23 %	18.14 % 16.79 %	2.61 % 1.98 %
Health	5061 4946	3985 4022	942 816	134 108	78.74 % 81.32 %	18.61 % 16.50 %	2.65 % 2.18 %
Pets	4986 5085	3735 3940	1118 1041	133 104	74.91 % 77.48 %	22.42 % 20.47 %	2.67 % 2.05 %
Sport & Fitness	5033 5081	3800 3966	1091 1018	142 97	75.50 % 78.06 %	21.68 % 20.04 %	2.82 % 1.91 %
Job & Career	5166 4957	3782 3705	1241 1146	143 106	73.21 % 74.74 %	24.02 % 23.12 %	2.77 % 2.14 %
Dating	5130 4950	3669 3655	1321 1198	140 97	71.52 % 73.84 %	25.75 % 24.20 %	2.73 % 1.96 %
Other	5218 4946	3980 3951	1084 882	154 113	76.27 % 79.88 %	20.77 % 17.83 %	2.95 % 2.28 %

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	4899 4513	3520 3341	1243 1083	136 89	71.85 % 74.03 %	25.37 % 24.00 %	2.78 % 1.97 %
Outlook Mail	4615 4625	3424 3521	1064 1012	127 92	74.19 % 76.13 %	23.06 % 21.88 %	2.75 % 1.99 %
Yahoo Mail	4657 4521	3468 3465	1056 960	133 96	74.47 % 76.64 %	22.68 % 21.23 %	2.86 % 2.12 %
AOL Mail	4765 4776	3549 3694	1089 980	127 102	74.48 % 77.35 %	22.85 % 20.52 %	2.67 % 2.14 %
Mail.com	4684 4943	3584 3946	978 900	122 97	76.52 % 79.83 %	20.88 % 18.21 %	2.60 % 1.96 %
Yandex Mail	4694 4742	3508 3626	1065 1017	121 99	74.73 % 76.47 %	22.69 % 21.45 %	2.58 % 2.09 %
GMX Mail	4692 4579	3470 3454	1095 1030	127 95	73.96 % 75.43 %	23.34 % 22.49 %	2.71 % 2.07 %
Zoho Mail	4739 4664	3596 3665	1013 905	130 94	75.88 % 78.58 %	21.38 % 19.40 %	2.74 % 2.02 %
ProtonMail	4851 4584	3774 3702	943 793	134 89	77.80 % 80.76 %	19.44 % 17.30 %	2.76 % 1.94 %
Custom Mail	4470 4579	3477 3710	874 766	119 103	77.79 % 81.02 %	19.55 % 16.73 %	2.66 % 2.25 %
iCloud Mail	4787 4644	3429 3451	1219 1095	139 98	71.63 % 74.31 %	25.46 % 23.58 %	2.90 % 2.11 %
Tuta	4825 4740	3728 3800	960 842	137 98	77.26 % 80.17 %	19.90 % 17.76 %	2.84 % 2.07 %
Juno.com	4597 4891	3525 3897	942 893	130 101	76.68 % 79.68 %	20.49 % 18.26 %	2.83 % 2.07 %
Mailfence	4761 4369	3685 3504	950 783	126 82	77.40 % 80.20 %	19.95 % 17.92 %	2.65 % 1.88 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.