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
63.961 64.547	50.217 49.094	12.619 14.120	1.413 1.594

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 (%)
78.51 % 76.06 %	19.73 % 21.88 %	2.21 % 2.47 %

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	4804 5059	3757 3839	971 1121	105 126	78.21 % 75.88 %	20.21 % 22.16 %	2.19 % 2.49 %
Elektronics	4766 4978	3746 3821	946 1057	106 126	78.60 % 76.76 %	19.85 % 21.23 %	2.22 % 2.53 %
Entertainment	5025 5004	3920 3771	1009 1134	117 128	78.01 % 75.36 %	20.08 % 22.66 %	2.33 % 2.56 %
Cosmetics & Beauty	4806 5094	3784 3896	947 1080	99 124	78.73 % 76.48 %	19.70 % 21.20 %	2.06 % 2.43 %
Food & Drink	4939 5062	3846 3823	1009 1128	104 125	77.87 % 75.52 %	20.43 % 22.28 %	2.11 % 2.47 %
Home & Garden	4853 4911	3813 3715	939 1105	111 116	78.57 % 75.65 %	19.35 % 22.50 %	2.29 % 2.36 %
Finance	5124 5039	4152 3961	892 972	110 129	81.03 % 78.61 %	17.41 % 19.29 %	2.15 % 2.56 %
Health	4903 4971	4012 3953	783 914	108 113	81.83 % 79.52 %	15.97 % 18.39 %	2.20 % 2.27 %
Pets	4994 5036	3887 3814	1004 1105	115 132	77.83 % 75.73 %	20.10 % 21.94 %	2.30 % 2.62 %
Sport & Fitness	4948 4891	3871 3712	997 1088	106 129	78.23 % 75.89 %	20.15 % 22.24 %	2.14 % 2.64 %
Job & Career	4860 4630	3703 3393	1080 1133	109 114	76.19 % 73.28 %	22.22 % 24.47 %	2.24 % 2.46 %
Dating	4816 4935	3616 3577	1124 1252	106 120	75.08 % 72.48 %	23.34 % 25.37 %	2.20 % 2.43 %
Other	5123 4937	4110 3819	918 1031	117 112	80.23 % 77.35 %	17.92 % 20.88 %	2.28 % 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	4572 4616	3436 3369	1061 1142	95 122	75.15 % 72.99 %	23.21 % 24.74 %	2.08 % 2.64 %
Outlook Mail	4560 4779	3490 3606	972 1083	105 112	76.54 % 75.46 %	21.32 % 22.66 %	2.30 % 2.34 %
Yahoo Mail	4647 4541	3595 3450	968 1002	104 113	77.36 % 75.97 %	20.83 % 22.07 %	2.24 % 2.49 %
AOL Mail	4668 4511	3635 3386	949 1041	100 115	77.87 % 75.06 %	20.33 % 23.08 %	2.14 % 2.55 %
Mail.com	4676 4781	3755 3683	833 998	103 115	80.30 % 77.03 %	17.81 % 20.87 %	2.20 % 2.41 %
Yandex Mail	4591 4658	3565 3494	944 1075	102 112	77.65 % 75.01 %	20.56 % 23.08 %	2.22 % 2.40 %
GMX Mail	4634 4600	3552 3450	994 1073	110 104	76.65 % 75.00 %	21.45 % 23.33 %	2.37 % 2.26 %
Zoho Mail	4714 4791	3774 3649	866 1055	102 112	80.06 % 76.16 %	18.37 % 22.02 %	2.16 % 2.34 %
ProtonMail	4452 4516	3567 3490	824 923	93 116	80.12 % 77.28 %	18.51 % 20.44 %	2.09 % 2.57 %
Custom Mail	4631 4727	3783 3689	756 926	108 117	81.69 % 78.04 %	16.32 % 19.59 %	2.33 % 2.48 %
iCloud Mail	4587 4569	3469 3361	1035 1114	102 118	75.63 % 73.56 %	22.56 % 24.38 %	2.22 % 2.58 %
Tuta	4657 4715	3750 3647	833 969	106 120	80.52 % 77.35 %	17.89 % 20.55 %	2.28 % 2.55 %
Juno.com	4828 4710	3877 3667	887 940	105 117	80.30 % 77.86 %	18.37 % 19.96 %	2.17 % 2.48 %
Mailfence	3744 4033	2969 3153	697 779	78 101	79.30 % 78.18 %	18.62 % 19.32 %	2.08 % 2.50 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.