Postmark and SendInBlue Email Deliverability Comparison

In this comparison, the deliverability of Postmark and SendInBlue 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 SendInBlue.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
136.976 402.780	112.364 303.984	18.887 83.770	4.927 15.026

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 SendInBlue in this comparison.

Inbox (%)	Spam (%)	Lost (%)
82.03 % 75.47 %	13.79 % 20.80 %	3.60 % 3.73 %

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 30967	8833 24340	1298 5573	374 1054	83.57 % 78.60 %	12.28 % 18.00 %	3.54 % 3.40 %
Elektronics	10610 30895	8819 23568	1390 6254	350 1073	83.12 % 76.28 %	13.10 % 20.24 %	3.30 % 3.47 %
Entertainment	10467 31027	8578 23293	1464 6580	364 1154	81.95 % 75.07 %	13.99 % 21.21 %	3.48 % 3.72 %
Cosmetics & Beauty	10479 30995	8614 23278	1470 6495	357 1222	82.20 % 75.10 %	14.03 % 20.95 %	3.41 % 3.94 %
Food & Drink	10375 31626	8725 24770	1277 5807	316 1049	84.10 % 78.32 %	12.31 % 18.36 %	3.05 % 3.32 %
Home & Garden	10599 31435	8935 24684	1279 5724	330 1027	84.30 % 78.52 %	12.07 % 18.21 %	3.11 % 3.27 %
Finance	10560 31001	8433 22348	1644 7319	441 1334	79.86 % 72.09 %	15.57 % 23.61 %	4.18 % 4.30 %
Health	10405 30974	8412 22552	1507 7177	407 1245	80.85 % 72.81 %	14.48 % 23.17 %	3.91 % 4.02 %
Pets	10581 31300	8800 24299	1380 5924	348 1077	83.17 % 77.63 %	13.04 % 18.93 %	3.29 % 3.44 %
Sport & Fitness	10601 30500	8607 22771	1544 6521	388 1208	81.19 % 74.66 %	14.56 % 21.38 %	3.66 % 3.96 %
Job & Career	10684 30761	8520 22618	1642 6889	441 1254	79.75 % 73.53 %	15.37 % 22.40 %	4.13 % 4.08 %
Dating	10500 30610	8371 21675	1596 7709	448 1226	79.72 % 70.81 %	15.20 % 25.18 %	4.27 % 4.01 %
Other	10545 30689	8717 23788	1396 5798	363 1103	82.66 % 77.51 %	13.24 % 18.89 %	3.44 % 3.59 %

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 SendInBlue.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	10511 40872	8156 29396	1810 9825	485 1651	77.59 % 71.92 %	17.22 % 24.04 %	4.61 % 4.04 %
Outlook Mail	10428 39335	8368 28795	1576 8946	413 1594	80.25 % 73.20 %	15.11 % 22.74 %	3.96 % 4.05 %
Yahoo Mail	10503 39623	8550 29861	1508 8266	388 1496	81.41 % 75.36 %	14.36 % 20.86 %	3.69 % 3.78 %
AOL Mail	10562 40403	8605 30219	1474 8592	398 1592	81.47 % 74.79 %	13.96 % 21.27 %	3.77 % 3.94 %
Mail.com	10425 40085	8589 30627	1384 8007	366 1451	82.39 % 76.41 %	13.28 % 19.98 %	3.51 % 3.62 %
Yandex Mail	10371 39964	8368 29495	1553 8908	399 1561	80.69 % 73.80 %	14.97 % 22.29 %	3.85 % 3.91 %
GMX Mail	10552 39884	8797 30400	1325 8097	355 1387	83.37 % 76.22 %	12.56 % 20.30 %	3.36 % 3.48 %
Zoho Mail	10651 39823	8896 30796	1338 7635	339 1392	83.52 % 77.33 %	12.56 % 19.17 %	3.18 % 3.50 %
ProtonMail	10528 40373	8875 31130	1265 7817	340 1426	84.30 % 77.11 %	12.02 % 19.36 %	3.23 % 3.53 %
Custom Mail	10730 40291	9060 31574	1310 7332	337 1385	84.44 % 78.36 %	12.21 % 18.20 %	3.14 % 3.44 %
iCloud Mail	10502 712	8295 535	1722 141	428 36	78.98 % 75.14 %	16.40 % 19.80 %	4.08 % 5.06 %
Tuta	10595 725	8863 595	1336 106	341 24	83.65 % 82.07 %	12.61 % 14.62 %	3.22 % 3.31 %
Juno.com	10618 690	8942 561	1286 98	338 31	84.22 % 81.30 %	12.11 % 14.20 %	3.18 % 4.49 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.