Postmark and MailChimp Email Deliverability Comparison

Postmark

MailChimp

In this comparison, the deliverability of Postmark and MailChimp 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
64.919 66.382	50.483 51.054	13.108 13.829	1.328 1.499

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 (%)
77.76 % 76.91 %	20.19 % 20.83 %	2.05 % 2.26 %

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	4961 5101	3834 3894	1029 1089	98 118	77.28 % 76.34 %	20.74 % 21.35 %	1.98 % 2.31 %
Elektronics	4886 4904	3792 3804	995 996	99 104	77.61 % 77.57 %	20.36 % 20.31 %	2.03 % 2.12 %
Entertainment	5077 5369	3911 4076	1056 1171	110 122	77.03 % 75.92 %	20.80 % 21.81 %	2.17 % 2.27 %
Cosmetics & Beauty	4939 5168	3857 4006	987 1041	95 121	78.09 % 77.52 %	19.98 % 20.14 %	1.92 % 2.34 %
Food & Drink	5041 5285	3880 4035	1060 1124	101 126	76.97 % 76.35 %	21.03 % 21.27 %	2.00 % 2.38 %
Home & Garden	4911 4863	3830 3697	976 1056	105 110	77.99 % 76.02 %	19.87 % 21.71 %	2.14 % 2.26 %
Finance	5187 5073	4202 4069	882 898	103 106	81.01 % 80.21 %	17.00 % 17.70 %	1.99 % 2.09 %
Health	4990 5124	4089 4147	799 861	102 116	81.94 % 80.93 %	16.01 % 16.80 %	2.04 % 2.26 %
Pets	5064 4941	3908 3794	1048 1033	108 114	77.17 % 76.79 %	20.70 % 20.91 %	2.13 % 2.31 %
Sport & Fitness	4964 5173	3838 3949	1030 1111	96 113	77.32 % 76.34 %	20.75 % 21.48 %	1.93 % 2.18 %
Job & Career	4917 5096	3695 3798	1123 1183	99 115	75.15 % 74.53 %	22.84 % 23.21 %	2.01 % 2.26 %
Dating	4963 5038	3653 3682	1210 1241	100 115	73.60 % 73.08 %	24.38 % 24.63 %	2.01 % 2.28 %
Other	5019 5247	3994 4103	913 1025	112 119	79.58 % 78.20 %	18.19 % 19.53 %	2.23 % 2.27 %

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	4490 4814	3294 3525	1111 1190	85 99	73.36 % 73.22 %	24.74 % 24.72 %	1.89 % 2.06 %
Outlook Mail	4554 4762	3450 3581	1009 1078	95 103	75.76 % 75.20 %	22.16 % 22.64 %	2.09 % 2.16 %
Yahoo Mail	4733 4667	3613 3510	1022 1038	98 119	76.34 % 75.21 %	21.59 % 22.24 %	2.07 % 2.55 %
AOL Mail	4753 4835	3652 3679	1003 1043	98 113	76.84 % 76.09 %	21.10 % 21.57 %	2.06 % 2.34 %
Mail.com	4829 4713	3857 3701	871 903	101 109	79.87 % 78.53 %	18.04 % 19.16 %	2.09 % 2.31 %
Yandex Mail	4621 4602	3537 3523	990 970	94 109	76.54 % 76.55 %	21.42 % 21.08 %	2.03 % 2.37 %
GMX Mail	4662 4884	3517 3652	1045 1126	100 106	75.44 % 74.77 %	22.42 % 23.05 %	2.15 % 2.17 %
Zoho Mail	4636 4719	3676 3669	865 935	95 115	79.29 % 77.75 %	18.66 % 19.81 %	2.05 % 2.44 %
ProtonMail	4513 4809	3599 3772	831 933	83 104	79.75 % 78.44 %	18.41 % 19.40 %	1.84 % 2.16 %
Custom Mail	4622 4669	3768 3797	751 778	103 94	81.52 % 81.32 %	16.25 % 16.66 %	2.23 % 2.01 %
iCloud Mail	4550 4648	3366 3388	1091 1161	93 99	73.98 % 72.89 %	23.98 % 24.98 %	2.04 % 2.13 %
Tuta	4689 4741	3755 3737	835 898	99 106	80.08 % 78.82 %	17.81 % 18.94 %	2.11 % 2.24 %
Juno.com	4771 4766	3796 3779	880 878	95 109	79.56 % 79.29 %	18.44 % 18.42 %	1.99 % 2.29 %
Mailfence	4496 4753	3603 3741	804 898	89 114	80.14 % 78.71 %	17.88 % 18.89 %	1.98 % 2.40 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.