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
70.968 402.780	58.513 303.984	9.753 83.770	2.702 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 (%)
82.45 % 75.47 %	13.74 % 20.80 %	3.81 % 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	5537 30967	4670 24340	662 5573	205 1054	84.34 % 78.60 %	11.96 % 18.00 %	3.70 % 3.40 %
Elektronics	5505 30895	4609 23568	710 6254	186 1073	83.72 % 76.28 %	12.90 % 20.24 %	3.38 % 3.47 %
Entertainment	5319 31027	4371 23293	741 6580	207 1154	82.18 % 75.07 %	13.93 % 21.21 %	3.89 % 3.72 %
Cosmetics & Beauty	5459 30995	4481 23278	760 6495	218 1222	82.08 % 75.10 %	13.92 % 20.95 %	3.99 % 3.94 %
Food & Drink	5286 31626	4509 24770	615 5807	162 1049	85.30 % 78.32 %	11.63 % 18.36 %	3.06 % 3.32 %
Home & Garden	5504 31435	4690 24684	635 5724	179 1027	85.21 % 78.52 %	11.54 % 18.21 %	3.25 % 3.27 %
Finance	5547 31001	4403 22348	882 7319	262 1334	79.38 % 72.09 %	15.90 % 23.61 %	4.72 % 4.30 %
Health	5399 30974	4378 22552	795 7177	226 1245	81.09 % 72.81 %	14.72 % 23.17 %	4.19 % 4.02 %
Pets	5541 31300	4634 24299	706 5924	201 1077	83.63 % 77.63 %	12.74 % 18.93 %	3.63 % 3.44 %
Sport & Fitness	5361 30500	4375 22771	794 6521	192 1208	81.61 % 74.66 %	14.81 % 21.38 %	3.58 % 3.96 %
Job & Career	5466 30761	4371 22618	862 6889	233 1254	79.97 % 73.53 %	15.77 % 22.40 %	4.26 % 4.08 %
Dating	5448 30610	4352 21675	862 7709	234 1226	79.88 % 70.81 %	15.82 % 25.18 %	4.30 % 4.01 %
Other	5596 30689	4670 23788	729 5798	197 1103	83.45 % 77.51 %	13.03 % 18.89 %	3.52 % 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	5436 40872	4170 29396	988 9825	278 1651	76.71 % 71.92 %	18.18 % 24.04 %	5.11 % 4.04 %
Outlook Mail	5238 39335	4220 28795	802 8946	216 1594	80.57 % 73.20 %	15.31 % 22.74 %	4.12 % 4.05 %
Yahoo Mail	5421 39623	4433 29861	778 8266	210 1496	81.77 % 75.36 %	14.35 % 20.86 %	3.87 % 3.78 %
AOL Mail	5516 40403	4503 30219	787 8592	226 1592	81.64 % 74.79 %	14.27 % 21.27 %	4.10 % 3.94 %
Mail.com	5408 40085	4479 30627	721 8007	208 1451	82.82 % 76.41 %	13.33 % 19.98 %	3.85 % 3.62 %
Yandex Mail	5347 39964	4318 29495	814 8908	215 1561	80.76 % 73.80 %	15.22 % 22.29 %	4.02 % 3.91 %
GMX Mail	5484 39884	4626 30400	665 8097	193 1387	84.35 % 76.22 %	12.13 % 20.30 %	3.52 % 3.48 %
Zoho Mail	5625 39823	4750 30796	689 7635	186 1392	84.44 % 77.33 %	12.25 % 19.17 %	3.31 % 3.50 %
ProtonMail	5409 40373	4615 31130	611 7817	183 1426	85.32 % 77.11 %	11.30 % 19.36 %	3.38 % 3.53 %
Custom Mail	5524 40291	4718 31574	628 7332	178 1385	85.41 % 78.36 %	11.37 % 18.20 %	3.22 % 3.44 %
iCloud Mail	5547 712	4341 535	961 141	245 36	78.26 % 75.14 %	17.32 % 19.80 %	4.42 % 5.06 %
Tuta	5570 725	4705 595	682 106	183 24	84.47 % 82.07 %	12.24 % 14.62 %	3.29 % 3.31 %
Juno.com	5443 690	4635 561	627 98	181 31	85.16 % 81.30 %	11.52 % 14.20 %	3.33 % 4.49 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.