MailChimp and Postmark Email Deliverability Comparison

MailChimp

Postmark

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
64.544 63.445	51.065 50.822	12.507 11.778	1.462 1.354

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 (%)
79.12 % 80.10 %	19.38 % 18.56 %	2.27 % 2.13 %

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	4875 4784	3825 3827	979 896	106 102	78.46 % 80.00 %	20.08 % 18.73 %	2.17 % 2.13 %
Elektronics	4838 4743	3830 3808	942 875	103 101	79.16 % 80.29 %	19.47 % 18.45 %	2.13 % 2.13 %
Entertainment	5193 5083	4062 4042	1048 963	118 120	78.22 % 79.52 %	20.18 % 18.95 %	2.27 % 2.36 %
Cosmetics & Beauty	4990 4728	3989 3806	913 876	119 96	79.94 % 80.50 %	18.30 % 18.53 %	2.38 % 2.03 %
Food & Drink	5230 4798	4120 3836	1021 913	129 93	78.78 % 79.95 %	19.52 % 19.03 %	2.47 % 1.94 %
Home & Garden	4733 4796	3704 3857	949 863	111 104	78.26 % 80.42 %	20.05 % 17.99 %	2.35 % 2.17 %
Finance	4973 4978	4052 4085	855 845	106 103	81.48 % 82.06 %	17.19 % 16.97 %	2.13 % 2.07 %
Health	4995 4709	4094 3895	847 721	114 98	81.96 % 82.71 %	16.96 % 15.31 %	2.28 % 2.08 %
Pets	4933 4983	3909 3962	937 938	115 113	79.24 % 79.51 %	18.99 % 18.82 %	2.33 % 2.27 %
Sport & Fitness	4958 5096	3915 4048	983 976	109 108	78.96 % 79.43 %	19.83 % 19.15 %	2.20 % 2.12 %
Job & Career	4998 4854	3859 3814	1057 983	115 101	77.21 % 78.57 %	21.15 % 20.25 %	2.30 % 2.08 %
Dating	4840 4857	3712 3741	1048 1049	108 103	76.69 % 77.02 %	21.65 % 21.60 %	2.23 % 2.12 %
Other	4988 5036	3994 4101	928 880	109 112	80.07 % 81.43 %	18.60 % 17.47 %	2.19 % 2.22 %

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 MailChimp.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	4820 4638	3701 3591	1051 1000	100 93	76.78 % 77.43 %	21.80 % 21.56 %	2.07 % 2.01 %
Outlook Mail	4592 4562	3603 3585	943 909	99 101	78.46 % 78.58 %	20.54 % 19.93 %	2.16 % 2.21 %
Yahoo Mail	4594 4625	3586 3657	906 908	112 101	78.06 % 79.07 %	19.72 % 19.63 %	2.44 % 2.18 %
AOL Mail	4861 4633	3820 3688	969 873	111 95	78.58 % 79.60 %	19.93 % 18.84 %	2.28 % 2.05 %
Mail.com	4827 4620	3873 3772	880 766	112 97	80.24 % 81.65 %	18.23 % 16.58 %	2.32 % 2.10 %
Yandex Mail	4728 4706	3693 3758	953 882	115 101	78.11 % 79.86 %	20.16 % 18.74 %	2.43 % 2.15 %
GMX Mail	4845 4690	3773 3679	1031 928	99 111	77.87 % 78.44 %	21.28 % 19.79 %	2.04 % 2.37 %
Zoho Mail	4651 4704	3739 3835	866 817	115 99	80.39 % 81.53 %	18.62 % 17.37 %	2.47 % 2.10 %
ProtonMail	4713 4536	3793 3702	845 801	102 94	80.48 % 81.61 %	17.93 % 17.66 %	2.16 % 2.07 %
Custom Mail	4655 4667	3809 3866	772 748	96 103	81.83 % 82.84 %	16.58 % 16.03 %	2.06 % 2.21 %
iCloud Mail	4525 4614	3464 3582	1020 966	99 99	76.55 % 77.63 %	22.54 % 20.94 %	2.19 % 2.15 %
Tuta	4762 4645	3840 3785	848 801	116 99	80.64 % 81.49 %	17.81 % 17.24 %	2.44 % 2.13 %
Juno.com	4807 4779	3870 3901	835 834	111 101	80.51 % 81.63 %	17.37 % 17.45 %	2.31 % 2.11 %
Mailfence	3164 3026	2501 2421	588 545	75 60	79.05 % 80.01 %	18.58 % 18.01 %	2.37 % 1.98 %

Compare MailChimp with other providers

Compare the email deliverability of MailChimp with other providers.