MailChimp and Postmark Email Deliverability Comparison

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

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
401.329 8.760	305.310 7.088	81.246 1.300	14.773 372

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 MailChimp in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.07 % 80.91 %	20.24 % 14.84 %	3.68 % 4.25 %

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	30997 680	24500 565	5482 90	1015 25	79.04 % 83.09 %	17.69 % 13.24 %	3.27 % 3.68 %
Elektronics	30962 698	23813 582	6061 94	1088 22	76.91 % 83.38 %	19.58 % 13.47 %	3.51 % 3.15 %
Entertainment	30509 677	23092 548	6234 102	1183 27	75.69 % 80.95 %	20.43 % 15.07 %	3.88 % 3.99 %
Cosmetics & Beauty	30907 634	23473 506	6300 99	1134 29	75.95 % 79.81 %	20.38 % 15.62 %	3.67 % 4.57 %
Food & Drink	31020 656	24559 553	5449 85	1012 18	79.17 % 84.30 %	17.57 % 12.96 %	3.26 % 2.74 %
Home & Garden	31268 697	24723 580	5543 88	1002 29	79.07 % 83.21 %	17.73 % 12.63 %	3.20 % 4.16 %
Finance	30796 724	22417 555	7124 123	1255 46	72.79 % 76.66 %	23.13 % 16.99 %	4.08 % 6.35 %
Health	31074 657	22868 523	7012 104	1194 30	73.59 % 79.60 %	22.57 % 15.83 %	3.84 % 4.57 %
Pets	30098 706	23612 576	5424 100	1062 30	78.45 % 81.59 %	18.02 % 14.16 %	3.53 % 4.25 %
Sport & Fitness	30302 621	22798 505	6332 95	1172 21	75.24 % 81.32 %	20.90 % 15.30 %	3.87 % 3.38 %
Job & Career	30670 702	22759 547	6634 120	1277 35	74.21 % 77.92 %	21.63 % 17.09 %	4.16 % 4.99 %
Dating	31848 625	22560 493	7984 103	1304 29	70.84 % 78.88 %	25.07 % 16.48 %	4.09 % 4.64 %
Other	30878 683	24136 555	5667 97	1075 31	78.17 % 81.26 %	18.35 % 14.20 %	3.48 % 4.54 %

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 MailChimp.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	40064 691	29112 516	9307 135	1645 40	72.66 % 74.67 %	23.23 % 19.54 %	4.11 % 5.79 %
Outlook Mail	39528 657	29115 514	8828 109	1585 34	73.66 % 78.23 %	22.33 % 16.59 %	4.01 % 5.18 %
Yahoo Mail	39961 636	30275 510	8172 99	1514 27	75.76 % 80.19 %	20.45 % 15.57 %	3.79 % 4.25 %
AOL Mail	40186 656	30427 526	8261 102	1498 28	75.72 % 80.18 %	20.56 % 15.55 %	3.73 % 4.27 %
Mail.com	40130 679	30774 557	7877 96	1479 26	76.69 % 82.03 %	19.63 % 14.14 %	3.69 % 3.83 %
Yandex Mail	40132 590	29886 467	8701 98	1545 25	74.47 % 79.15 %	21.68 % 16.61 %	3.85 % 4.24 %
GMX Mail	39937 688	30679 567	7871 93	1387 28	76.82 % 82.41 %	19.71 % 13.52 %	3.47 % 4.07 %
Zoho Mail	40202 691	31177 573	7669 93	1356 25	77.55 % 82.92 %	19.08 % 13.46 %	3.37 % 3.62 %
ProtonMail	39363 678	30704 580	7311 81	1348 17	78.00 % 85.55 %	18.57 % 11.95 %	3.42 % 2.51 %
Custom Mail	39785 692	31537 573	6930 88	1318 31	79.27 % 82.80 %	17.42 % 12.72 %	3.31 % 4.48 %
iCloud Mail	691 651	519 497	132 122	40 32	75.11 % 76.34 %	19.10 % 18.74 %	5.79 % 4.92 %
Tuta	651 746	539 623	92 95	20 28	82.80 % 83.51 %	14.13 % 12.73 %	3.07 % 3.75 %
Juno.com	699 705	566 585	95 89	38 31	80.97 % 82.98 %	13.59 % 12.62 %	5.44 % 4.40 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.