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
136.976 137.274	112.364 107.836	18.887 23.143	4.927 5.212

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 (%)
82.03 % 78.56 %	13.79 % 16.86 %	3.60 % 3.80 %

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	10570 10622	8833 8554	1298 1652	374 354	83.57 % 80.53 %	12.28 % 15.55 %	3.54 % 3.33 %
Elektronics	10610 10542	8819 8336	1390 1719	350 409	83.12 % 79.07 %	13.10 % 16.31 %	3.30 % 3.88 %
Entertainment	10467 10651	8578 8353	1464 1795	364 422	81.95 % 78.42 %	13.99 % 16.85 %	3.48 % 3.96 %
Cosmetics & Beauty	10479 10565	8614 8306	1470 1791	357 395	82.20 % 78.62 %	14.03 % 16.95 %	3.41 % 3.74 %
Food & Drink	10375 10555	8725 8472	1277 1623	316 368	84.10 % 80.27 %	12.31 % 15.38 %	3.05 % 3.49 %
Home & Garden	10599 10624	8935 8527	1279 1625	330 371	84.30 % 80.26 %	12.07 % 15.30 %	3.11 % 3.49 %
Finance	10560 10545	8433 8064	1644 1961	441 435	79.86 % 76.47 %	15.57 % 18.60 %	4.18 % 4.13 %
Health	10405 10319	8412 7999	1507 1825	407 420	80.85 % 77.52 %	14.48 % 17.69 %	3.91 % 4.07 %
Pets	10581 10446	8800 8302	1380 1677	348 375	83.17 % 79.48 %	13.04 % 16.05 %	3.29 % 3.59 %
Sport & Fitness	10601 10690	8607 8303	1544 1899	388 422	81.19 % 77.67 %	14.56 % 17.76 %	3.66 % 3.95 %
Job & Career	10684 10383	8520 7977	1642 1921	441 409	79.75 % 76.83 %	15.37 % 18.50 %	4.13 % 3.94 %
Dating	10500 10674	8371 8178	1596 1947	448 456	79.72 % 76.62 %	15.20 % 18.24 %	4.27 % 4.27 %
Other	10545 10658	8717 8465	1396 1708	363 376	82.66 % 79.42 %	13.24 % 16.03 %	3.44 % 3.53 %

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	10511 10506	8156 7821	1810 2161	485 471	77.59 % 74.44 %	17.22 % 20.57 %	4.61 % 4.48 %
Outlook Mail	10428 10408	8368 7989	1576 1906	413 443	80.25 % 76.76 %	15.11 % 18.31 %	3.96 % 4.26 %
Yahoo Mail	10503 10646	8550 8336	1508 1837	388 403	81.41 % 78.30 %	14.36 % 17.26 %	3.69 % 3.79 %
AOL Mail	10562 10752	8605 8375	1474 1841	398 455	81.47 % 77.89 %	13.96 % 17.12 %	3.77 % 4.23 %
Mail.com	10425 10480	8589 8270	1384 1725	366 406	82.39 % 78.91 %	13.28 % 16.46 %	3.51 % 3.87 %
Yandex Mail	10371 10550	8368 8142	1553 1887	399 424	80.69 % 77.18 %	14.97 % 17.89 %	3.85 % 4.02 %
GMX Mail	10552 10508	8797 8428	1325 1628	355 358	83.37 % 80.21 %	12.56 % 15.49 %	3.36 % 3.41 %
Zoho Mail	10651 10682	8896 8532	1338 1678	339 383	83.52 % 79.87 %	12.56 % 15.71 %	3.18 % 3.59 %
ProtonMail	10528 10547	8875 8529	1265 1583	340 343	84.30 % 80.87 %	12.02 % 15.01 %	3.23 % 3.25 %
Custom Mail	10730 10386	9060 8368	1310 1576	337 362	84.44 % 80.57 %	12.21 % 15.17 %	3.14 % 3.49 %
iCloud Mail	10502 10633	8295 8035	1722 2069	428 413	78.98 % 75.57 %	16.40 % 19.46 %	4.08 % 3.88 %
Tuta	10595 10677	8863 8555	1336 1675	341 385	83.65 % 80.13 %	12.61 % 15.69 %	3.22 % 3.61 %
Juno.com	10618 10499	8942 8456	1286 1577	338 366	84.22 % 80.54 %	12.11 % 15.02 %	3.18 % 3.49 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.