Constant Contact and SendGrid Email Deliverability Comparison

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

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
540.483 147.229	412.262 115.221	107.687 25.724	21.069 5.462

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. SendGrid beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.28 % 78.26 %	19.92 % 17.47 %	3.90 % 3.71 %

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, SendGrid is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	41392 11408	32657 9129	7282 1869	1516 375	78.90 % 80.02 %	17.59 % 16.38 %	3.66 % 3.29 %
Elektronics	41334 11303	31860 8906	7982 1917	1525 428	77.08 % 78.79 %	19.31 % 16.96 %	3.69 % 3.79 %
Entertainment	41622 11433	31703 8934	8295 2005	1627 442	76.17 % 78.14 %	19.93 % 17.54 %	3.91 % 3.87 %
Cosmetics & Beauty	41603 11313	31719 8861	8337 1972	1612 413	76.24 % 78.33 %	20.04 % 17.43 %	3.87 % 3.65 %
Food & Drink	41617 11333	32927 9041	7308 1826	1447 388	79.12 % 79.78 %	17.56 % 16.11 %	3.48 % 3.42 %
Home & Garden	41806 11375	32922 9087	7393 1822	1550 390	78.75 % 79.89 %	17.68 % 16.02 %	3.71 % 3.43 %
Finance	41990 11397	30775 8692	9514 2187	1751 456	73.29 % 76.27 %	22.66 % 19.19 %	4.17 % 4.00 %
Health	41038 11055	30441 8544	8947 2009	1675 436	74.18 % 77.29 %	21.80 % 18.17 %	4.08 % 3.94 %
Pets	42146 11209	32859 8871	7759 1865	1559 396	77.96 % 79.14 %	18.41 % 16.64 %	3.70 % 3.53 %
Sport & Fitness	41859 11457	31437 8882	8771 2103	1692 444	75.10 % 77.52 %	20.95 % 18.36 %	4.04 % 3.88 %
Job & Career	41297 11111	30826 8507	8756 2111	1760 427	74.64 % 76.56 %	21.20 % 19.00 %	4.26 % 3.84 %
Dating	41795 11402	30105 8718	9894 2132	1829 473	72.03 % 76.46 %	23.67 % 18.70 %	4.38 % 4.15 %
Other	40984 11433	32031 9049	7449 1906	1526 394	78.15 % 79.15 %	18.18 % 16.67 %	3.72 % 3.45 %

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, SendGrid is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	50783 11334	36942 8435	11716 2371	2164 492	72.74 % 74.42 %	23.07 % 20.92 %	4.26 % 4.34 %
Outlook Mail	50592 11224	37299 8599	11167 2113	2163 464	73.73 % 76.61 %	22.07 % 18.83 %	4.28 % 4.13 %
Yahoo Mail	50611 11362	38304 8869	10344 2024	2014 423	75.68 % 78.06 %	20.44 % 17.81 %	3.98 % 3.72 %
AOL Mail	49605 11496	37561 8930	10008 2042	2072 474	75.72 % 77.68 %	20.18 % 17.76 %	4.18 % 4.12 %
Mail.com	51145 11228	39324 8829	9909 1911	1950 424	76.89 % 78.63 %	19.37 % 17.02 %	3.81 % 3.78 %
Yandex Mail	51255 11268	38151 8673	11062 2081	2129 440	74.43 % 76.97 %	21.58 % 18.47 %	4.15 % 3.90 %
GMX Mail	50233 11272	38550 9000	9835 1829	1862 376	76.74 % 79.84 %	19.58 % 16.23 %	3.71 % 3.34 %
Zoho Mail	50707 11464	39469 9118	9484 1880	1801 402	77.84 % 79.54 %	18.70 % 16.40 %	3.55 % 3.51 %
ProtonMail	50988 11360	39687 9123	9564 1796	1803 362	77.84 % 80.31 %	18.76 % 15.81 %	3.54 % 3.19 %
Custom Mail	50909 11178	40142 8945	9036 1779	1784 379	78.85 % 80.02 %	17.75 % 15.92 %	3.50 % 3.39 %
iCloud Mail	11115 11393	8481 8603	2148 2263	533 435	76.30 % 75.51 %	19.33 % 19.86 %	4.80 % 3.82 %
Tuta	11128 11428	9001 9105	1722 1877	420 405	80.89 % 79.67 %	15.47 % 16.42 %	3.77 % 3.54 %
Juno.com	11412 11222	9351 8992	1692 1758	374 386	81.94 % 80.13 %	14.83 % 15.67 %	3.28 % 3.44 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.