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
70.968 80.139	58.513 63.219	9.753 13.357	2.702 3.563

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 (%)
82.45 % 78.89 %	13.74 % 16.67 %	3.81 % 4.45 %

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 6312	4670 5118	662 934	205 260	84.34 % 81.08 %	11.96 % 14.80 %	3.70 % 4.12 %
Elektronics	5505 6147	4609 4944	710 962	186 241	83.72 % 80.43 %	12.90 % 15.65 %	3.38 % 3.92 %
Entertainment	5319 6187	4371 4879	741 1045	207 263	82.18 % 78.86 %	13.93 % 16.89 %	3.89 % 4.25 %
Cosmetics & Beauty	5459 6230	4481 4894	760 1038	218 298	82.08 % 78.56 %	13.92 % 16.66 %	3.99 % 4.78 %
Food & Drink	5286 6146	4509 4994	615 906	162 246	85.30 % 81.26 %	11.63 % 14.74 %	3.06 % 4.00 %
Home & Garden	5504 6086	4690 4920	635 905	179 261	85.21 % 80.84 %	11.54 % 14.87 %	3.25 % 4.29 %
Finance	5547 6129	4403 4671	882 1150	262 308	79.38 % 76.21 %	15.90 % 18.76 %	4.72 % 5.03 %
Health	5399 6139	4378 4790	795 1091	226 258	81.09 % 78.03 %	14.72 % 17.77 %	4.19 % 4.20 %
Pets	5541 6069	4634 4880	706 950	201 239	83.63 % 80.41 %	12.74 % 15.65 %	3.63 % 3.94 %
Sport & Fitness	5361 6087	4375 4711	794 1083	192 293	81.61 % 77.39 %	14.81 % 17.79 %	3.58 % 4.81 %
Job & Career	5466 6233	4371 4728	862 1171	233 334	79.97 % 75.85 %	15.77 % 18.79 %	4.26 % 5.36 %
Dating	5448 6117	4352 4676	862 1143	234 298	79.88 % 76.44 %	15.82 % 18.69 %	4.30 % 4.87 %
Other	5596 6257	4670 5014	729 979	197 264	83.45 % 80.13 %	13.03 % 15.65 %	3.52 % 4.22 %

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	5436 6147	4170 4530	988 1296	278 321	76.71 % 73.69 %	18.18 % 21.08 %	5.11 % 5.22 %
Outlook Mail	5238 6144	4220 4726	802 1120	216 298	80.57 % 76.92 %	15.31 % 18.23 %	4.12 % 4.85 %
Yahoo Mail	5421 6171	4433 4853	778 1056	210 262	81.77 % 78.64 %	14.35 % 17.11 %	3.87 % 4.25 %
AOL Mail	5516 6059	4503 4742	787 1041	226 276	81.64 % 78.26 %	14.27 % 17.18 %	4.10 % 4.56 %
Mail.com	5408 6173	4479 4926	721 1005	208 242	82.82 % 79.80 %	13.33 % 16.28 %	3.85 % 3.92 %
Yandex Mail	5347 6156	4318 4732	814 1118	215 306	80.76 % 76.87 %	15.22 % 18.16 %	4.02 % 4.97 %
GMX Mail	5484 6255	4626 5045	665 950	193 260	84.35 % 80.66 %	12.13 % 15.19 %	3.52 % 4.16 %
Zoho Mail	5625 6180	4750 5001	689 935	186 244	84.44 % 80.92 %	12.25 % 15.13 %	3.31 % 3.95 %
ProtonMail	5409 6210	4615 5049	611 892	183 269	85.32 % 81.30 %	11.30 % 14.36 %	3.38 % 4.33 %
Custom Mail	5524 6202	4718 5085	628 888	178 229	85.41 % 81.99 %	11.37 % 14.32 %	3.22 % 3.69 %
iCloud Mail	5547 6210	4341 4574	961 1252	245 384	78.26 % 73.66 %	17.32 % 20.16 %	4.42 % 6.18 %
Tuta	5570 6206	4705 5025	682 938	183 243	84.47 % 80.97 %	12.24 % 15.11 %	3.29 % 3.92 %
Juno.com	5443 6026	4635 4931	627 866	181 229	85.16 % 81.83 %	11.52 % 14.37 %	3.33 % 3.80 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.