Postmark and SendGrid Email Deliverability Comparison

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
62.077 62.600	50.973 49.846	8.694 10.115	2.410 2.639

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 (%)
82.11 % 79.63 %	14.01 % 16.16 %	3.88 % 4.22 %

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	4830 4926	4056 4050	592 706	182 170	83.98 % 82.22 %	12.26 % 14.33 %	3.77 % 3.45 %
Elektronics	4784 4870	3986 3891	631 755	167 224	83.32 % 79.90 %	13.19 % 15.50 %	3.49 % 4.60 %
Entertainment	4674 4832	3825 3841	665 788	184 203	81.84 % 79.49 %	14.23 % 16.31 %	3.94 % 4.20 %
Cosmetics & Beauty	4777 4831	3902 3848	679 785	196 198	81.68 % 79.65 %	14.21 % 16.25 %	4.10 % 4.10 %
Food & Drink	4630 4850	3945 3981	545 691	140 178	85.21 % 82.08 %	11.77 % 14.25 %	3.02 % 3.67 %
Home & Garden	4818 4866	4086 3970	570 693	162 203	84.81 % 81.59 %	11.83 % 14.24 %	3.36 % 4.17 %
Finance	4847 4748	3831 3655	783 869	233 224	79.04 % 76.98 %	16.15 % 18.30 %	4.81 % 4.72 %
Health	4745 4733	3829 3723	712 810	204 200	80.70 % 78.66 %	15.01 % 17.11 %	4.30 % 4.23 %
Pets	4821 4681	4013 3788	627 703	181 190	83.24 % 80.92 %	13.01 % 15.02 %	3.75 % 4.06 %
Sport & Fitness	4709 4964	3824 3898	710 854	175 212	81.21 % 78.53 %	15.08 % 17.20 %	3.72 % 4.27 %
Job & Career	4745 4779	3782 3691	759 877	204 211	79.70 % 77.23 %	16.00 % 18.35 %	4.30 % 4.42 %
Dating	4746 4790	3771 3681	765 863	210 246	79.46 % 76.85 %	16.12 % 18.02 %	4.42 % 5.14 %
Other	4951 4730	4123 3829	656 721	172 180	83.28 % 80.95 %	13.25 % 15.24 %	3.47 % 3.81 %

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	4728 4720	3610 3489	871 979	247 252	76.35 % 73.92 %	18.42 % 20.74 %	5.22 % 5.34 %
Outlook Mail	4561 4764	3660 3697	713 842	188 225	80.25 % 77.60 %	15.63 % 17.67 %	4.12 % 4.72 %
Yahoo Mail	4764 4881	3877 3866	699 807	188 208	81.38 % 79.21 %	14.67 % 16.53 %	3.95 % 4.26 %
AOL Mail	4865 5010	3963 3936	705 834	197 240	81.46 % 78.56 %	14.49 % 16.65 %	4.05 % 4.79 %
Mail.com	4799 4802	3957 3848	651 748	191 206	82.45 % 80.13 %	13.57 % 15.58 %	3.98 % 4.29 %
Yandex Mail	4676 4750	3761 3699	724 836	191 215	80.43 % 77.87 %	15.48 % 17.60 %	4.08 % 4.53 %
GMX Mail	4739 4695	3982 3848	585 679	172 168	84.03 % 81.96 %	12.34 % 14.46 %	3.63 % 3.58 %
Zoho Mail	4909 4771	4131 3879	614 699	164 193	84.15 % 81.30 %	12.51 % 14.65 %	3.34 % 4.05 %
ProtonMail	4740 4917	4028 4076	546 679	166 162	84.98 % 82.90 %	11.52 % 13.81 %	3.50 % 3.29 %
Custom Mail	4800 4805	4082 3942	561 676	157 187	85.04 % 82.04 %	11.69 % 14.07 %	3.27 % 3.89 %
iCloud Mail	4793 4874	3721 3717	844 956	228 201	77.63 % 76.26 %	17.61 % 19.61 %	4.76 % 4.12 %
Tuta	4930 4790	4153 3887	616 700	161 203	84.24 % 81.15 %	12.49 % 14.61 %	3.27 % 4.24 %
Juno.com	4773 4821	4048 3962	565 680	160 179	84.81 % 82.18 %	11.84 % 14.10 %	3.35 % 3.71 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.