Postmark and SendGrid Email Deliverability Comparison

Postmark

SendGrid

In this comparison, the deliverability of Postmark and SendGrid 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 SendGrid.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
65.170 64.932	50.776 50.153	13.059 13.282	1.335 1.497

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 SendGrid in this comparison.

Inbox (%)	Spam (%)	Lost (%)
77.91 % 77.24 %	20.04 % 20.46 %	2.05 % 2.31 %

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	5054 5103	3909 3943	1048 1047	97 113	77.34 % 77.27 %	20.74 % 20.52 %	1.92 % 2.21 %
Elektronics	4865 4961	3784 3866	983 977	98 118	77.78 % 77.93 %	20.21 % 19.69 %	2.01 % 2.38 %
Entertainment	4883 5086	3811 3899	967 1062	105 125	78.05 % 76.66 %	19.80 % 20.88 %	2.15 % 2.46 %
Cosmetics & Beauty	5003 5102	3922 3963	985 1018	96 121	78.39 % 77.68 %	19.69 % 19.95 %	1.92 % 2.37 %
Food & Drink	5094 5136	3918 3928	1077 1081	99 127	76.91 % 76.48 %	21.14 % 21.05 %	1.94 % 2.47 %
Home & Garden	5052 4813	3925 3675	1016 1031	111 107	77.69 % 76.36 %	20.11 % 21.42 %	2.20 % 2.22 %
Finance	5254 5025	4268 4057	882 845	104 123	81.23 % 80.74 %	16.79 % 16.82 %	1.98 % 2.45 %
Health	4946 4953	4022 3995	816 846	108 112	81.32 % 80.66 %	16.50 % 17.08 %	2.18 % 2.26 %
Pets	5085 4990	3940 3847	1041 1031	104 112	77.48 % 77.09 %	20.47 % 20.66 %	2.05 % 2.24 %
Sport & Fitness	5081 4946	3966 3810	1018 1018	97 118	78.06 % 77.03 %	20.04 % 20.58 %	1.91 % 2.39 %
Job & Career	4957 4725	3705 3533	1146 1091	106 101	74.74 % 74.77 %	23.12 % 23.09 %	2.14 % 2.14 %
Dating	4950 5071	3655 3680	1198 1282	97 109	73.84 % 72.57 %	24.20 % 25.28 %	1.96 % 2.15 %
Other	4946 5021	3951 3957	882 953	113 111	79.88 % 78.81 %	17.83 % 18.98 %	2.28 % 2.21 %

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 SendGrid.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4513 4574	3341 3353	1083 1124	89 97	74.03 % 73.31 %	24.00 % 24.57 %	1.97 % 2.12 %
Outlook Mail	4625 4731	3521 3584	1012 1046	92 101	76.13 % 75.76 %	21.88 % 22.11 %	1.99 % 2.13 %
Yahoo Mail	4521 4397	3465 3385	960 917	96 95	76.64 % 76.98 %	21.23 % 20.86 %	2.12 % 2.16 %
AOL Mail	4776 4653	3694 3547	980 993	102 113	77.35 % 76.23 %	20.52 % 21.34 %	2.14 % 2.43 %
Mail.com	4943 4754	3946 3721	900 926	97 107	79.83 % 78.27 %	18.21 % 19.48 %	1.96 % 2.25 %
Yandex Mail	4742 4689	3626 3607	1017 980	99 102	76.47 % 76.92 %	21.45 % 20.90 %	2.09 % 2.18 %
GMX Mail	4579 4629	3454 3482	1030 1048	95 99	75.43 % 75.22 %	22.49 % 22.64 %	2.07 % 2.14 %
Zoho Mail	4664 4600	3665 3586	905 907	94 107	78.58 % 77.96 %	19.40 % 19.72 %	2.02 % 2.33 %
ProtonMail	4584 4628	3702 3668	793 854	89 106	80.76 % 79.26 %	17.30 % 18.45 %	1.94 % 2.29 %
Custom Mail	4579 4683	3710 3768	766 799	103 116	81.02 % 80.46 %	16.73 % 17.06 %	2.25 % 2.48 %
iCloud Mail	4644 4593	3451 3406	1095 1080	98 107	74.31 % 74.16 %	23.58 % 23.51 %	2.11 % 2.33 %
Tuta	4740 4570	3800 3628	842 829	98 113	80.17 % 79.39 %	17.76 % 18.14 %	2.07 % 2.47 %
Juno.com	4891 4647	3897 3662	893 869	101 116	79.68 % 78.80 %	18.26 % 18.70 %	2.07 % 2.50 %
Mailfence	4369 4784	3504 3756	783 910	82 118	80.20 % 78.51 %	17.92 % 19.02 %	1.88 % 2.47 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.