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
63.445 63.763	50.822 48.627	11.778 14.148	1.354 1.517

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 (%)
80.10 % 76.26 %	18.56 % 22.19 %	2.13 % 2.38 %

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	4784 5052	3827 3843	896 1128	102 123	80.00 % 76.07 %	18.73 % 22.33 %	2.13 % 2.43 %
Elektronics	4743 4831	3808 3712	875 1058	101 118	80.29 % 76.84 %	18.45 % 21.90 %	2.13 % 2.44 %
Entertainment	5083 4928	4042 3748	963 1120	120 118	79.52 % 76.06 %	18.95 % 22.73 %	2.36 % 2.39 %
Cosmetics & Beauty	4728 5169	3806 3952	876 1129	96 122	80.50 % 76.46 %	18.53 % 21.84 %	2.03 % 2.36 %
Food & Drink	4798 4895	3836 3714	913 1094	93 120	79.95 % 75.87 %	19.03 % 22.35 %	1.94 % 2.45 %
Home & Garden	4796 4846	3857 3669	863 1102	104 114	80.42 % 75.71 %	17.99 % 22.74 %	2.17 % 2.35 %
Finance	4978 5029	4085 3930	845 1020	103 124	82.06 % 78.15 %	16.97 % 20.28 %	2.07 % 2.47 %
Health	4709 4894	3895 3867	721 954	98 102	82.71 % 79.02 %	15.31 % 19.49 %	2.08 % 2.08 %
Pets	4983 5017	3962 3813	938 1116	113 124	79.51 % 76.00 %	18.82 % 22.24 %	2.27 % 2.47 %
Sport & Fitness	5096 4830	4048 3686	976 1089	108 122	79.43 % 76.31 %	19.15 % 22.55 %	2.12 % 2.53 %
Job & Career	4854 4652	3814 3450	983 1120	101 111	78.57 % 74.16 %	20.25 % 24.08 %	2.08 % 2.39 %
Dating	4857 4736	3741 3479	1049 1175	103 111	77.02 % 73.46 %	21.60 % 24.81 %	2.12 % 2.34 %
Other	5036 4884	4101 3764	880 1043	112 108	81.43 % 77.07 %	17.47 % 21.36 %	2.22 % 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	4638 4707	3591 3472	1000 1154	93 120	77.43 % 73.76 %	21.56 % 24.52 %	2.01 % 2.55 %
Outlook Mail	4562 4784	3585 3620	909 1099	101 109	78.58 % 75.67 %	19.93 % 22.97 %	2.21 % 2.28 %
Yahoo Mail	4625 4589	3657 3508	908 1011	101 113	79.07 % 76.44 %	19.63 % 22.03 %	2.18 % 2.46 %
AOL Mail	4633 4500	3688 3398	873 1033	95 108	79.60 % 75.51 %	18.84 % 22.96 %	2.05 % 2.40 %
Mail.com	4620 4714	3772 3636	766 1004	97 109	81.65 % 77.13 %	16.58 % 21.30 %	2.10 % 2.31 %
Yandex Mail	4706 4643	3758 3521	882 1066	101 107	79.86 % 75.83 %	18.74 % 22.96 %	2.15 % 2.30 %
GMX Mail	4690 4574	3679 3450	928 1073	111 101	78.44 % 75.43 %	19.79 % 23.46 %	2.37 % 2.21 %
Zoho Mail	4704 4886	3835 3725	817 1097	99 110	81.53 % 76.24 %	17.37 % 22.45 %	2.10 % 2.25 %
ProtonMail	4536 4464	3702 3454	801 938	94 109	81.61 % 77.37 %	17.66 % 21.01 %	2.07 % 2.44 %
Custom Mail	4667 4727	3866 3657	748 984	103 116	82.84 % 77.36 %	16.03 % 20.82 %	2.21 % 2.45 %
iCloud Mail	4614 4605	3582 3400	966 1120	99 114	77.63 % 73.83 %	20.94 % 24.32 %	2.15 % 2.48 %
Tuta	4645 4628	3785 3589	801 983	99 114	81.49 % 77.55 %	17.24 % 21.24 %	2.13 % 2.46 %
Juno.com	4779 4703	3901 3654	834 967	101 110	81.63 % 77.70 %	17.45 % 20.56 %	2.11 % 2.34 %
Mailfence	3026 3239	2421 2543	545 619	60 77	80.01 % 78.51 %	18.01 % 19.11 %	1.98 % 2.38 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.