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
147.015 402.780	120.909 303.984	20.423 83.770	5.173 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 (%)
82.24 % 75.47 %	13.89 % 20.80 %	3.52 % 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	11277 30967	9443 24340	1406 5573	392 1054	83.74 % 78.60 %	12.47 % 18.00 %	3.48 % 3.40 %
Elektronics	11316 30895	9424 23568	1504 6254	369 1073	83.28 % 76.28 %	13.29 % 20.24 %	3.26 % 3.47 %
Entertainment	11234 31027	9229 23293	1581 6580	384 1154	82.15 % 75.07 %	14.07 % 21.21 %	3.42 % 3.72 %
Cosmetics & Beauty	11222 30995	9250 23278	1584 6495	374 1222	82.43 % 75.10 %	14.12 % 20.95 %	3.33 % 3.94 %
Food & Drink	11120 31626	9368 24770	1383 5807	332 1049	84.24 % 78.32 %	12.44 % 18.36 %	2.99 % 3.32 %
Home & Garden	11374 31435	9586 24684	1393 5724	350 1027	84.28 % 78.52 %	12.25 % 18.21 %	3.08 % 3.27 %
Finance	11390 31001	9148 22348	1768 7319	462 1334	80.32 % 72.09 %	15.52 % 23.61 %	4.06 % 4.30 %
Health	11190 30974	9063 22552	1621 7177	427 1245	80.99 % 72.81 %	14.49 % 23.17 %	3.82 % 4.02 %
Pets	11339 31300	9439 24299	1493 5924	366 1077	83.24 % 77.63 %	13.17 % 18.93 %	3.23 % 3.44 %
Sport & Fitness	11448 30500	9331 22771	1674 6521	407 1208	81.51 % 74.66 %	14.62 % 21.38 %	3.56 % 3.96 %
Job & Career	11464 30761	9177 22618	1777 6889	461 1254	80.05 % 73.53 %	15.50 % 22.40 %	4.02 % 4.08 %
Dating	11236 30610	9005 21675	1710 7709	466 1226	80.14 % 70.81 %	15.22 % 25.18 %	4.15 % 4.01 %
Other	11405 30689	9446 23788	1529 5798	383 1103	82.82 % 77.51 %	13.41 % 18.89 %	3.36 % 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	11316 40872	8843 29396	1929 9825	504 1651	78.15 % 71.92 %	17.05 % 24.04 %	4.45 % 4.04 %
Outlook Mail	11176 39335	8989 28795	1692 8946	431 1594	80.43 % 73.20 %	15.14 % 22.74 %	3.86 % 4.05 %
Yahoo Mail	11164 39623	9116 29861	1606 8266	405 1496	81.66 % 75.36 %	14.39 % 20.86 %	3.63 % 3.78 %
AOL Mail	11334 40403	9266 30219	1583 8592	416 1592	81.75 % 74.79 %	13.97 % 21.27 %	3.67 % 3.94 %
Mail.com	11147 40085	9200 30627	1496 8007	380 1451	82.53 % 76.41 %	13.42 % 19.98 %	3.41 % 3.62 %
Yandex Mail	11157 39964	9033 29495	1672 8908	421 1561	80.96 % 73.80 %	14.99 % 22.29 %	3.77 % 3.91 %
GMX Mail	11304 39884	9436 30400	1439 8097	376 1387	83.47 % 76.22 %	12.73 % 20.30 %	3.33 % 3.48 %
Zoho Mail	11469 39823	9590 30796	1471 7635	358 1392	83.62 % 77.33 %	12.83 % 19.17 %	3.12 % 3.50 %
ProtonMail	11276 40373	9512 31130	1389 7817	359 1426	84.36 % 77.11 %	12.32 % 19.36 %	3.18 % 3.53 %
Custom Mail	11489 40291	9705 31574	1423 7332	354 1385	84.47 % 78.36 %	12.39 % 18.20 %	3.08 % 3.44 %
iCloud Mail	11321 712	8998 535	1836 141	449 36	79.48 % 75.14 %	16.22 % 19.80 %	3.97 % 5.06 %
Tuta	11402 725	9558 595	1461 106	360 24	83.83 % 82.07 %	12.81 % 14.62 %	3.16 % 3.31 %
Juno.com	11460 690	9663 561	1426 98	360 31	84.32 % 81.30 %	12.44 % 14.20 %	3.14 % 4.49 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.