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
8.760 402.780	7.088 303.984	1.300 83.770	372 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 (%)
80.91 % 75.47 %	14.84 % 20.80 %	4.25 % 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	680 30967	565 24340	90 5573	25 1054	83.09 % 78.60 %	13.24 % 18.00 %	3.68 % 3.40 %
Elektronics	698 30895	582 23568	94 6254	22 1073	83.38 % 76.28 %	13.47 % 20.24 %	3.15 % 3.47 %
Entertainment	677 31027	548 23293	102 6580	27 1154	80.95 % 75.07 %	15.07 % 21.21 %	3.99 % 3.72 %
Cosmetics & Beauty	634 30995	506 23278	99 6495	29 1222	79.81 % 75.10 %	15.62 % 20.95 %	4.57 % 3.94 %
Food & Drink	656 31626	553 24770	85 5807	18 1049	84.30 % 78.32 %	12.96 % 18.36 %	2.74 % 3.32 %
Home & Garden	697 31435	580 24684	88 5724	29 1027	83.21 % 78.52 %	12.63 % 18.21 %	4.16 % 3.27 %
Finance	724 31001	555 22348	123 7319	46 1334	76.66 % 72.09 %	16.99 % 23.61 %	6.35 % 4.30 %
Health	657 30974	523 22552	104 7177	30 1245	79.60 % 72.81 %	15.83 % 23.17 %	4.57 % 4.02 %
Pets	706 31300	576 24299	100 5924	30 1077	81.59 % 77.63 %	14.16 % 18.93 %	4.25 % 3.44 %
Sport & Fitness	621 30500	505 22771	95 6521	21 1208	81.32 % 74.66 %	15.30 % 21.38 %	3.38 % 3.96 %
Job & Career	702 30761	547 22618	120 6889	35 1254	77.92 % 73.53 %	17.09 % 22.40 %	4.99 % 4.08 %
Dating	625 30610	493 21675	103 7709	29 1226	78.88 % 70.81 %	16.48 % 25.18 %	4.64 % 4.01 %
Other	683 30689	555 23788	97 5798	31 1103	81.26 % 77.51 %	14.20 % 18.89 %	4.54 % 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	691 40872	516 29396	135 9825	40 1651	74.67 % 71.92 %	19.54 % 24.04 %	5.79 % 4.04 %
Outlook Mail	657 39335	514 28795	109 8946	34 1594	78.23 % 73.20 %	16.59 % 22.74 %	5.18 % 4.05 %
Yahoo Mail	636 39623	510 29861	99 8266	27 1496	80.19 % 75.36 %	15.57 % 20.86 %	4.25 % 3.78 %
AOL Mail	656 40403	526 30219	102 8592	28 1592	80.18 % 74.79 %	15.55 % 21.27 %	4.27 % 3.94 %
Mail.com	679 40085	557 30627	96 8007	26 1451	82.03 % 76.41 %	14.14 % 19.98 %	3.83 % 3.62 %
Yandex Mail	590 39964	467 29495	98 8908	25 1561	79.15 % 73.80 %	16.61 % 22.29 %	4.24 % 3.91 %
GMX Mail	688 39884	567 30400	93 8097	28 1387	82.41 % 76.22 %	13.52 % 20.30 %	4.07 % 3.48 %
Zoho Mail	691 39823	573 30796	93 7635	25 1392	82.92 % 77.33 %	13.46 % 19.17 %	3.62 % 3.50 %
ProtonMail	678 40373	580 31130	81 7817	17 1426	85.55 % 77.11 %	11.95 % 19.36 %	2.51 % 3.53 %
Custom Mail	692 40291	573 31574	88 7332	31 1385	82.80 % 78.36 %	12.72 % 18.20 %	4.48 % 3.44 %
iCloud Mail	651 712	497 535	122 141	32 36	76.34 % 75.14 %	18.74 % 19.80 %	4.92 % 5.06 %
Tuta	746 725	623 595	95 106	28 24	83.51 % 82.07 %	12.73 % 14.62 %	3.75 % 3.31 %
Juno.com	705 690	585 561	89 98	31 31	82.98 % 81.30 %	12.62 % 14.20 %	4.40 % 4.49 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.