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
8.760 17.819	7.088 13.985	1.300 3.005	372 829

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 (%)
80.91 % 78.48 %	14.84 % 16.86 %	4.25 % 4.65 %

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 1479	565 1195	90 221	25 63	83.09 % 80.80 %	13.24 % 14.94 %	3.68 % 4.26 %
Elektronics	698 1413	582 1140	94 224	22 49	83.38 % 80.68 %	13.47 % 15.85 %	3.15 % 3.47 %
Entertainment	677 1407	548 1099	102 243	27 65	80.95 % 78.11 %	15.07 % 17.27 %	3.99 % 4.62 %
Cosmetics & Beauty	634 1327	506 1053	99 219	29 55	79.81 % 79.35 %	15.62 % 16.50 %	4.57 % 4.14 %
Food & Drink	656 1347	553 1075	85 200	18 72	84.30 % 79.81 %	12.96 % 14.85 %	2.74 % 5.35 %
Home & Garden	697 1356	580 1085	88 204	29 67	83.21 % 80.01 %	12.63 % 15.04 %	4.16 % 4.94 %
Finance	724 1364	555 1029	123 259	46 76	76.66 % 75.44 %	16.99 % 18.99 %	6.35 % 5.57 %
Health	657 1306	523 1014	104 234	30 58	79.60 % 77.64 %	15.83 % 17.92 %	4.57 % 4.44 %
Pets	706 1375	576 1092	100 222	30 61	81.59 % 79.42 %	14.16 % 16.15 %	4.25 % 4.44 %
Sport & Fitness	621 1329	505 1019	95 237	21 73	81.32 % 76.67 %	15.30 % 17.83 %	3.38 % 5.49 %
Job & Career	702 1399	547 1064	120 263	35 72	77.92 % 76.05 %	17.09 % 18.80 %	4.99 % 5.15 %
Dating	625 1325	493 1003	103 257	29 65	78.88 % 75.70 %	16.48 % 19.40 %	4.64 % 4.91 %
Other	683 1392	555 1117	97 222	31 53	81.26 % 80.24 %	14.20 % 15.95 %	4.54 % 3.81 %

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	691 1371	516 996	135 295	40 80	74.67 % 72.65 %	19.54 % 21.52 %	5.79 % 5.84 %
Outlook Mail	657 1420	514 1090	109 263	34 67	78.23 % 76.76 %	16.59 % 18.52 %	5.18 % 4.72 %
Yahoo Mail	636 1398	510 1103	99 241	27 54	80.19 % 78.90 %	15.57 % 17.24 %	4.25 % 3.86 %
AOL Mail	656 1365	526 1063	102 237	28 65	80.18 % 77.88 %	15.55 % 17.36 %	4.27 % 4.76 %
Mail.com	679 1426	557 1134	96 235	26 57	82.03 % 79.52 %	14.14 % 16.48 %	3.83 % 4.00 %
Yandex Mail	590 1371	467 1042	98 253	25 76	79.15 % 76.00 %	16.61 % 18.45 %	4.24 % 5.54 %
GMX Mail	688 1432	567 1143	93 220	28 69	82.41 % 79.82 %	13.52 % 15.36 %	4.07 % 4.82 %
Zoho Mail	691 1308	573 1055	93 199	25 54	82.92 % 80.66 %	13.46 % 15.21 %	3.62 % 4.13 %
ProtonMail	678 1328	580 1078	81 192	17 58	85.55 % 81.17 %	11.95 % 14.46 %	2.51 % 4.37 %
Custom Mail	692 1375	573 1124	88 203	31 48	82.80 % 81.75 %	12.72 % 14.76 %	4.48 % 3.49 %
iCloud Mail	651 1316	497 966	122 267	32 83	76.34 % 73.40 %	18.74 % 20.29 %	4.92 % 6.31 %
Tuta	746 1436	623 1147	95 215	28 74	83.51 % 79.87 %	12.73 % 14.97 %	3.75 % 5.15 %
Juno.com	705 1273	585 1044	89 185	31 44	82.98 % 82.01 %	12.62 % 14.53 %	4.40 % 3.46 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.