Constant Contact and ConvertKit Email Deliverability Comparison

In this comparison, the deliverability of Constant Contact and ConvertKit 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 ConvertKit than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
352.286 353.124	262.235 268.142	76.380 72.452	13.671 12.530

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. ConvertKit beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
74.44 % 75.93 %	21.68 % 20.52 %	3.88 % 3.55 %

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, ConvertKit is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	27244 27199	21093 21517	5143 4802	1008 880	77.42 % 79.11 %	18.88 % 17.66 %	3.70 % 3.24 %
Elektronics	26856 27274	20202 20861	5681 5510	973 903	75.22 % 76.49 %	21.15 % 20.20 %	3.62 % 3.31 %
Entertainment	27090 27027	20118 20444	5888 5594	1084 989	74.26 % 75.64 %	21.73 % 20.70 %	4.00 % 3.66 %
Cosmetics & Beauty	27190 27322	20225 20688	5915 5662	1050 972	74.38 % 75.72 %	21.75 % 20.72 %	3.86 % 3.56 %
Food & Drink	27142 27310	21112 21496	5091 4924	939 890	77.78 % 78.71 %	18.76 % 18.03 %	3.46 % 3.26 %
Home & Garden	27121 27061	20971 21417	5158 4776	992 868	77.32 % 79.14 %	19.02 % 17.65 %	3.66 % 3.21 %
Finance	27409 27039	19428 19572	6861 6403	1120 1064	70.88 % 72.38 %	25.03 % 23.68 %	4.09 % 3.94 %
Health	26653 27267	19119 19999	6455 6255	1079 1013	71.73 % 73.35 %	24.22 % 22.94 %	4.05 % 3.72 %
Pets	27546 27288	21105 21389	5450 5017	991 882	76.62 % 78.38 %	19.79 % 18.39 %	3.60 % 3.23 %
Sport & Fitness	27525 27243	20158 20383	6254 5823	1113 1037	73.24 % 74.82 %	22.72 % 21.37 %	4.04 % 3.81 %
Job & Career	26748 27211	19505 20189	6108 5958	1135 1064	72.92 % 74.19 %	22.84 % 21.90 %	4.24 % 3.91 %
Dating	27204 27139	18789 19229	7207 6819	1208 1091	69.07 % 70.85 %	26.49 % 25.13 %	4.44 % 4.02 %
Other	26558 26744	20410 20958	5169 4909	979 877	76.85 % 78.37 %	19.46 % 18.36 %	3.69 % 3.28 %

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, ConvertKit is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	35367 35126	25194 25551	8719 8232	1454 1343	71.24 % 72.74 %	24.65 % 23.44 %	4.11 % 3.82 %
Outlook Mail	35050 34973	25176 25601	8378 8004	1496 1368	71.83 % 73.20 %	23.90 % 22.89 %	4.27 % 3.91 %
Yahoo Mail	35170 35922	26085 27224	7682 7427	1403 1271	74.17 % 75.79 %	21.84 % 20.68 %	3.99 % 3.54 %
AOL Mail	34331 35379	25495 26784	7407 7307	1429 1288	74.26 % 75.71 %	21.58 % 20.65 %	4.16 % 3.64 %
Mail.com	35388 34472	26703 26639	7341 6648	1344 1185	75.46 % 77.28 %	20.74 % 19.29 %	3.80 % 3.44 %
Yandex Mail	35397 34647	25723 25782	8204 7520	1470 1345	72.67 % 74.41 %	23.18 % 21.70 %	4.15 % 3.88 %
GMX Mail	34923 35672	26124 27161	7477 7270	1322 1241	74.80 % 76.14 %	21.41 % 20.38 %	3.79 % 3.48 %
Zoho Mail	35399 35970	27032 27833	7141 6901	1226 1236	76.36 % 77.38 %	20.17 % 19.19 %	3.46 % 3.44 %
ProtonMail	35585 35236	27053 27331	7259 6774	1273 1131	76.02 % 77.57 %	20.40 % 19.22 %	3.58 % 3.21 %
Custom Mail	35676 35727	27650 28236	6772 6369	1254 1122	77.50 % 79.03 %	18.98 % 17.83 %	3.51 % 3.14 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.