SendGrid and Postmark Email Deliverability Comparison

SendGrid

Postmark

In this comparison, the deliverability of SendGrid 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 SendGrid.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
64.970 65.027	49.945 50.616	13.532 13.085	1.493 1.326

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 (%)
76.87 % 77.84 %	20.83 % 20.12 %	2.30 % 2.04 %

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	5069 4970	3921 3843	1037 1033	111 94	77.35 % 77.32 %	20.46 % 20.78 %	2.19 % 1.89 %
Elektronics	4956 4862	3829 3785	1009 983	118 94	77.26 % 77.85 %	20.36 % 20.22 %	2.38 % 1.93 %
Entertainment	4997 4997	3813 3877	1061 1015	123 105	76.31 % 77.59 %	21.23 % 20.31 %	2.46 % 2.10 %
Cosmetics & Beauty	5082 4939	3911 3869	1052 976	119 94	76.96 % 78.34 %	20.70 % 19.76 %	2.34 % 1.90 %
Food & Drink	5121 5061	3910 3882	1093 1078	118 101	76.35 % 76.70 %	21.34 % 21.30 %	2.30 % 2.00 %
Home & Garden	4885 5067	3714 3946	1063 1012	108 109	76.03 % 77.88 %	21.76 % 19.97 %	2.21 % 2.15 %
Finance	4986 5190	4004 4199	859 884	123 107	80.30 % 80.91 %	17.23 % 17.03 %	2.47 % 2.06 %
Health	5064 4964	4078 4038	873 818	113 108	80.53 % 81.35 %	17.24 % 16.48 %	2.23 % 2.18 %
Pets	5145 5115	3945 3960	1080 1051	120 104	76.68 % 77.42 %	20.99 % 20.55 %	2.33 % 2.03 %
Sport & Fitness	4935 4997	3787 3891	1027 1008	121 98	76.74 % 77.87 %	20.81 % 20.17 %	2.45 % 1.96 %
Job & Career	4611 4970	3408 3720	1101 1149	102 101	73.91 % 74.85 %	23.88 % 23.12 %	2.21 % 2.03 %
Dating	5050 4915	3651 3632	1289 1185	110 98	72.30 % 73.90 %	25.52 % 24.11 %	2.18 % 1.99 %
Other	5069 4980	3974 3974	988 893	107 113	78.40 % 79.80 %	19.49 % 17.93 %	2.11 % 2.27 %

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	4569 4525	3357 3346	1109 1094	103 85	73.47 % 73.94 %	24.27 % 24.18 %	2.25 % 1.88 %
Outlook Mail	4754 4546	3604 3464	1051 993	99 89	75.81 % 76.20 %	22.11 % 21.84 %	2.08 % 1.96 %
Yahoo Mail	4473 4730	3414 3610	953 1018	106 102	76.32 % 76.32 %	21.31 % 21.52 %	2.37 % 2.16 %
AOL Mail	4547 4744	3435 3664	1005 980	107 100	75.54 % 77.23 %	22.10 % 20.66 %	2.35 % 2.11 %
Mail.com	4722 4897	3686 3912	929 888	107 97	78.06 % 79.89 %	19.67 % 18.13 %	2.27 % 1.98 %
Yandex Mail	4631 4667	3519 3569	1008 1003	104 95	75.99 % 76.47 %	21.77 % 21.49 %	2.25 % 2.04 %
GMX Mail	4530 4666	3396 3499	1042 1066	92 101	74.97 % 74.99 %	23.00 % 22.85 %	2.03 % 2.16 %
Zoho Mail	4641 4684	3576 3686	957 906	108 92	77.05 % 78.69 %	20.62 % 19.34 %	2.33 % 1.96 %
ProtonMail	4655 4568	3674 3673	871 810	110 85	78.93 % 80.41 %	18.71 % 17.73 %	2.36 % 1.86 %
Custom Mail	4671 4630	3740 3781	821 744	110 105	80.07 % 81.66 %	17.58 % 16.07 %	2.35 % 2.27 %
iCloud Mail	4667 4587	3451 3396	1106 1093	110 98	73.94 % 74.04 %	23.70 % 23.83 %	2.36 % 2.14 %
Tuta	4712 4684	3707 3760	891 826	114 98	78.67 % 80.27 %	18.91 % 17.63 %	2.42 % 2.09 %
Juno.com	4667 4737	3677 3776	879 866	111 95	78.79 % 79.71 %	18.83 % 18.28 %	2.38 % 2.01 %
Mailfence	4731 4362	3709 3480	910 798	112 84	78.40 % 79.78 %	19.23 % 18.29 %	2.37 % 1.93 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.