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
147.015 147.229	120.909 115.221	20.423 25.724	5.173 5.462

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 (%)
82.24 % 78.26 %	13.89 % 17.47 %	3.52 % 3.71 %

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	11277 11408	9443 9129	1406 1869	392 375	83.74 % 80.02 %	12.47 % 16.38 %	3.48 % 3.29 %
Elektronics	11316 11303	9424 8906	1504 1917	369 428	83.28 % 78.79 %	13.29 % 16.96 %	3.26 % 3.79 %
Entertainment	11234 11433	9229 8934	1581 2005	384 442	82.15 % 78.14 %	14.07 % 17.54 %	3.42 % 3.87 %
Cosmetics & Beauty	11222 11313	9250 8861	1584 1972	374 413	82.43 % 78.33 %	14.12 % 17.43 %	3.33 % 3.65 %
Food & Drink	11120 11333	9368 9041	1383 1826	332 388	84.24 % 79.78 %	12.44 % 16.11 %	2.99 % 3.42 %
Home & Garden	11374 11375	9586 9087	1393 1822	350 390	84.28 % 79.89 %	12.25 % 16.02 %	3.08 % 3.43 %
Finance	11390 11397	9148 8692	1768 2187	462 456	80.32 % 76.27 %	15.52 % 19.19 %	4.06 % 4.00 %
Health	11190 11055	9063 8544	1621 2009	427 436	80.99 % 77.29 %	14.49 % 18.17 %	3.82 % 3.94 %
Pets	11339 11209	9439 8871	1493 1865	366 396	83.24 % 79.14 %	13.17 % 16.64 %	3.23 % 3.53 %
Sport & Fitness	11448 11457	9331 8882	1674 2103	407 444	81.51 % 77.52 %	14.62 % 18.36 %	3.56 % 3.88 %
Job & Career	11464 11111	9177 8507	1777 2111	461 427	80.05 % 76.56 %	15.50 % 19.00 %	4.02 % 3.84 %
Dating	11236 11402	9005 8718	1710 2132	466 473	80.14 % 76.46 %	15.22 % 18.70 %	4.15 % 4.15 %
Other	11405 11433	9446 9049	1529 1906	383 394	82.82 % 79.15 %	13.41 % 16.67 %	3.36 % 3.45 %

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	11316 11334	8843 8435	1929 2371	504 492	78.15 % 74.42 %	17.05 % 20.92 %	4.45 % 4.34 %
Outlook Mail	11176 11224	8989 8599	1692 2113	431 464	80.43 % 76.61 %	15.14 % 18.83 %	3.86 % 4.13 %
Yahoo Mail	11164 11362	9116 8869	1606 2024	405 423	81.66 % 78.06 %	14.39 % 17.81 %	3.63 % 3.72 %
AOL Mail	11334 11496	9266 8930	1583 2042	416 474	81.75 % 77.68 %	13.97 % 17.76 %	3.67 % 4.12 %
Mail.com	11147 11228	9200 8829	1496 1911	380 424	82.53 % 78.63 %	13.42 % 17.02 %	3.41 % 3.78 %
Yandex Mail	11157 11268	9033 8673	1672 2081	421 440	80.96 % 76.97 %	14.99 % 18.47 %	3.77 % 3.90 %
GMX Mail	11304 11272	9436 9000	1439 1829	376 376	83.47 % 79.84 %	12.73 % 16.23 %	3.33 % 3.34 %
Zoho Mail	11469 11464	9590 9118	1471 1880	358 402	83.62 % 79.54 %	12.83 % 16.40 %	3.12 % 3.51 %
ProtonMail	11276 11360	9512 9123	1389 1796	359 362	84.36 % 80.31 %	12.32 % 15.81 %	3.18 % 3.19 %
Custom Mail	11489 11178	9705 8945	1423 1779	354 379	84.47 % 80.02 %	12.39 % 15.92 %	3.08 % 3.39 %
iCloud Mail	11321 11393	8998 8603	1836 2263	449 435	79.48 % 75.51 %	16.22 % 19.86 %	3.97 % 3.82 %
Tuta	11402 11428	9558 9105	1461 1877	360 405	83.83 % 79.67 %	12.81 % 16.42 %	3.16 % 3.54 %
Juno.com	11460 11222	9663 8992	1426 1758	360 386	84.32 % 80.13 %	12.44 % 15.67 %	3.14 % 3.44 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.