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
76.208 75.883	59.446 58.419	15.216 15.646	1.546 1.818

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 (%)
78.00 % 76.99 %	19.97 % 20.62 %	2.03 % 2.40 %

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	5962 5963	4609 4546	1237 1277	116 140	77.31 % 76.24 %	20.75 % 21.42 %	1.95 % 2.35 %
Elektronics	5746 6002	4487 4662	1135 1193	124 147	78.09 % 77.67 %	19.75 % 19.88 %	2.16 % 2.45 %
Entertainment	5767 5767	4475 4427	1177 1196	115 144	77.60 % 76.76 %	20.41 % 20.74 %	1.99 % 2.50 %
Cosmetics & Beauty	5867 5849	4599 4533	1151 1172	117 144	78.39 % 77.50 %	19.62 % 20.04 %	1.99 % 2.46 %
Food & Drink	5848 5864	4519 4503	1222 1220	107 141	77.27 % 76.79 %	20.90 % 20.80 %	1.83 % 2.40 %
Home & Garden	5964 5642	4638 4306	1204 1204	122 132	77.77 % 76.32 %	20.19 % 21.34 %	2.05 % 2.34 %
Finance	6130 5836	4988 4668	1017 1022	125 146	81.37 % 79.99 %	16.59 % 17.51 %	2.04 % 2.50 %
Health	5936 5787	4850 4662	963 989	123 136	81.70 % 80.56 %	16.22 % 17.09 %	2.07 % 2.35 %
Pets	6013 5847	4653 4494	1238 1217	122 136	77.38 % 76.86 %	20.59 % 20.81 %	2.03 % 2.33 %
Sport & Fitness	5783 5781	4507 4456	1161 1182	115 143	77.94 % 77.08 %	20.08 % 20.45 %	1.99 % 2.47 %
Job & Career	5694 5626	4272 4169	1306 1327	116 130	75.03 % 74.10 %	22.94 % 23.59 %	2.04 % 2.31 %
Dating	5757 5974	4271 4319	1375 1523	111 132	74.19 % 72.30 %	23.88 % 25.49 %	1.93 % 2.21 %
Other	5741 5945	4578 4674	1030 1124	133 147	79.74 % 78.62 %	17.94 % 18.91 %	2.32 % 2.47 %

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	5221 5221	3883 3834	1236 1276	102 111	74.37 % 73.43 %	23.67 % 24.44 %	1.95 % 2.13 %
Outlook Mail	5281 5479	4016 4125	1158 1225	107 129	76.05 % 75.29 %	21.93 % 22.36 %	2.03 % 2.35 %
Yahoo Mail	5483 5230	4202 3999	1170 1107	111 124	76.64 % 76.46 %	21.34 % 21.17 %	2.02 % 2.37 %
AOL Mail	5582 5433	4329 4108	1136 1189	117 136	77.55 % 75.61 %	20.35 % 21.88 %	2.10 % 2.50 %
Mail.com	5748 5580	4587 4346	1051 1107	110 127	79.80 % 77.89 %	18.28 % 19.84 %	1.91 % 2.28 %
Yandex Mail	5529 5471	4238 4172	1173 1176	118 123	76.65 % 76.26 %	21.22 % 21.50 %	2.13 % 2.25 %
GMX Mail	5207 5383	3936 4056	1164 1196	107 131	75.59 % 75.35 %	22.35 % 22.22 %	2.05 % 2.43 %
Zoho Mail	5432 5433	4256 4211	1070 1092	106 130	78.35 % 77.51 %	19.70 % 20.10 %	1.95 % 2.39 %
ProtonMail	5417 5334	4360 4222	958 984	99 128	80.49 % 79.15 %	17.69 % 18.45 %	1.83 % 2.40 %
Custom Mail	5335 5464	4329 4394	889 933	117 137	81.14 % 80.42 %	16.66 % 17.08 %	2.19 % 2.51 %
iCloud Mail	5272 5390	3941 3977	1219 1283	112 130	74.75 % 73.78 %	23.12 % 23.80 %	2.12 % 2.41 %
Tuta	5623 5469	4510 4328	999 1006	114 135	80.21 % 79.14 %	17.77 % 18.39 %	2.03 % 2.47 %
Juno.com	5731 5495	4578 4329	1029 1025	124 141	79.88 % 78.78 %	17.95 % 18.65 %	2.16 % 2.57 %
Mailfence	5347 5501	4281 4318	964 1047	102 136	80.06 % 78.49 %	18.03 % 19.03 %	1.91 % 2.47 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.