ConvertKit and Postmark Email Deliverability Comparison

In this comparison, the deliverability of ConvertKit 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 ConvertKit.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
394.406 44.308	302.081 36.117	78.208 6.404	14.117 1.787

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 ConvertKit in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.59 % 81.51 %	19.83 % 14.45 %	3.58 % 4.03 %

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	30362 3433	24204 2867	5178 434	980 132	79.72 % 83.51 %	17.05 % 12.64 %	3.23 % 3.85 %
Elektronics	30287 3414	23385 2823	5902 466	1000 125	77.21 % 82.69 %	19.49 % 13.65 %	3.30 % 3.66 %
Entertainment	30255 3342	23092 2714	6045 492	1118 136	76.32 % 81.21 %	19.98 % 14.72 %	3.70 % 4.07 %
Cosmetics & Beauty	30425 3358	23232 2715	6099 496	1094 147	76.36 % 80.85 %	20.05 % 14.77 %	3.60 % 4.38 %
Food & Drink	30373 3326	24085 2816	5283 407	1005 103	79.30 % 84.67 %	17.39 % 12.24 %	3.31 % 3.10 %
Home & Garden	30268 3410	24131 2873	5167 419	970 118	79.72 % 84.25 %	17.07 % 12.29 %	3.20 % 3.46 %
Finance	30282 3489	22132 2723	6922 579	1228 187	73.09 % 78.05 %	22.86 % 16.60 %	4.06 % 5.36 %
Health	30386 3338	22511 2671	6731 516	1144 151	74.08 % 80.02 %	22.15 % 15.46 %	3.76 % 4.52 %
Pets	30515 3502	24072 2892	5436 472	1007 138	78.89 % 82.58 %	17.81 % 13.48 %	3.30 % 3.94 %
Sport & Fitness	30484 3373	23007 2723	6312 521	1165 129	75.47 % 80.73 %	20.71 % 15.45 %	3.82 % 3.82 %
Job & Career	30364 3392	22710 2684	6456 555	1198 153	74.79 % 79.13 %	21.26 % 16.36 %	3.95 % 4.51 %
Dating	30301 3355	21762 2663	7322 554	1217 138	71.82 % 79.37 %	24.16 % 16.51 %	4.02 % 4.11 %
Other	30104 3576	23758 2953	5355 493	991 130	78.92 % 82.58 %	17.79 % 13.79 %	3.29 % 3.64 %

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 ConvertKit.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	39282 3380	28873 2556	8892 635	1517 189	73.50 % 75.62 %	22.64 % 18.79 %	3.86 % 5.59 %
Outlook Mail	38997 3267	28821 2603	8633 527	1543 137	73.91 % 79.68 %	22.14 % 16.13 %	3.96 % 4.19 %
Yahoo Mail	40103 3432	30633 2776	8046 518	1424 138	76.39 % 80.89 %	20.06 % 15.09 %	3.55 % 4.02 %
AOL Mail	39425 3495	30059 2818	7908 522	1458 155	76.24 % 80.63 %	20.06 % 14.94 %	3.70 % 4.43 %
Mail.com	38624 3428	30060 2808	7211 481	1353 139	77.83 % 81.91 %	18.67 % 14.03 %	3.50 % 4.05 %
Yandex Mail	38821 3340	29129 2660	8168 534	1524 146	75.03 % 79.64 %	21.04 % 15.99 %	3.93 % 4.37 %
GMX Mail	39819 3391	30627 2828	7798 430	1394 133	76.92 % 83.40 %	19.58 % 12.68 %	3.50 % 3.92 %
Zoho Mail	40117 3521	31303 2938	7430 457	1384 126	78.03 % 83.44 %	18.52 % 12.98 %	3.45 % 3.58 %
ProtonMail	39371 3357	30858 2836	7262 398	1251 123	78.38 % 84.48 %	18.45 % 11.86 %	3.18 % 3.66 %
Custom Mail	39847 3365	31718 2852	6860 408	1269 105	79.60 % 84.75 %	17.22 % 12.12 %	3.18 % 3.12 %

Compare ConvertKit with other providers

Compare the email deliverability of ConvertKit with other providers.