Postmark and Sarbacane Email Deliverability Comparison

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

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
147.015 155.661	120.909 121.085	20.423 28.246	5.173 6.306

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 Sarbacane in this comparison.

Inbox (%)	Spam (%)	Lost (%)
82.24 % 77.79 %	13.89 % 18.15 %	3.52 % 4.05 %

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 12102	9443 9602	1406 2049	392 465	83.74 % 79.34 %	12.47 % 16.93 %	3.48 % 3.84 %
Elektronics	11316 12069	9424 9520	1504 2100	369 437	83.28 % 78.88 %	13.29 % 17.40 %	3.26 % 3.62 %
Entertainment	11234 11906	9229 9252	1581 2175	384 474	82.15 % 77.71 %	14.07 % 18.27 %	3.42 % 3.98 %
Cosmetics & Beauty	11222 11995	9250 9343	1584 2162	374 485	82.43 % 77.89 %	14.12 % 18.02 %	3.33 % 4.04 %
Food & Drink	11120 12077	9368 9600	1383 2019	332 441	84.24 % 79.49 %	12.44 % 16.72 %	2.99 % 3.65 %
Home & Garden	11374 11830	9586 9384	1393 1991	350 455	84.28 % 79.32 %	12.25 % 16.83 %	3.08 % 3.85 %
Finance	11390 11976	9148 9061	1768 2357	462 554	80.32 % 75.66 %	15.52 % 19.68 %	4.06 % 4.63 %
Health	11190 12036	9063 9272	1621 2296	427 478	80.99 % 77.04 %	14.49 % 19.08 %	3.82 % 3.97 %
Pets	11339 11750	9439 9278	1493 2031	366 446	83.24 % 78.96 %	13.17 % 17.29 %	3.23 % 3.80 %
Sport & Fitness	11448 12053	9331 9265	1674 2288	407 501	81.51 % 76.87 %	14.62 % 18.98 %	3.56 % 4.16 %
Job & Career	11464 12101	9177 9148	1777 2405	461 551	80.05 % 75.60 %	15.50 % 19.87 %	4.02 % 4.55 %
Dating	11236 11818	9005 8960	1710 2309	466 534	80.14 % 75.82 %	15.22 % 19.54 %	4.15 % 4.52 %
Other	11405 11948	9446 9400	1529 2064	383 485	82.82 % 78.67 %	13.41 % 17.27 %	3.36 % 4.06 %

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 Sarbacane.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	11316 11952	8843 8857	1929 2554	504 541	78.15 % 74.10 %	17.05 % 21.37 %	4.45 % 4.53 %
Outlook Mail	11176 12072	8989 9201	1692 2330	431 533	80.43 % 76.22 %	15.14 % 19.30 %	3.86 % 4.42 %
Yahoo Mail	11164 12087	9116 9378	1606 2249	405 460	81.66 % 77.59 %	14.39 % 18.61 %	3.63 % 3.81 %
AOL Mail	11334 11808	9266 9106	1583 2194	416 508	81.75 % 77.12 %	13.97 % 18.58 %	3.67 % 4.30 %
Mail.com	11147 11996	9200 9419	1496 2139	380 443	82.53 % 78.52 %	13.42 % 17.83 %	3.41 % 3.69 %
Yandex Mail	11157 11927	9033 9116	1672 2292	421 519	80.96 % 76.43 %	14.99 % 19.22 %	3.77 % 4.35 %
GMX Mail	11304 12057	9436 9538	1439 2054	376 463	83.47 % 79.11 %	12.73 % 17.04 %	3.33 % 3.84 %
Zoho Mail	11469 11977	9590 9485	1471 2047	358 460	83.62 % 79.19 %	12.83 % 17.09 %	3.12 % 3.84 %
ProtonMail	11276 12164	9512 9676	1389 1997	359 487	84.36 % 79.55 %	12.32 % 16.42 %	3.18 % 4.00 %
Custom Mail	11489 11941	9705 9570	1423 1956	354 413	84.47 % 80.14 %	12.39 % 16.38 %	3.08 % 3.46 %
iCloud Mail	11321 11970	8998 8836	1836 2467	449 625	79.48 % 73.82 %	16.22 % 20.61 %	3.97 % 5.22 %
Tuta	11402 12040	9558 9564	1461 2036	360 446	83.83 % 79.44 %	12.81 % 16.91 %	3.16 % 3.70 %
Juno.com	11460 11670	9663 9339	1426 1931	360 408	84.32 % 80.03 %	12.44 % 16.55 %	3.14 % 3.50 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.