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
464.675 71.595	351.590 56.977	94.581 11.590	18.504 3.028

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 (%)
75.66 % 79.58 %	20.35 % 16.19 %	3.98 % 4.23 %

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	35727 5599	28052 4601	6347 803	1328 195	78.52 % 82.18 %	17.77 % 14.34 %	3.72 % 3.48 %
Elektronics	35461 5565	27120 4451	7006 862	1335 252	76.48 % 79.98 %	19.76 % 15.49 %	3.76 % 4.53 %
Entertainment	35681 5483	26967 4368	7271 895	1443 220	75.58 % 79.66 %	20.38 % 16.32 %	4.04 % 4.01 %
Cosmetics & Beauty	35744 5550	27021 4421	7307 900	1416 229	75.60 % 79.66 %	20.44 % 16.22 %	3.96 % 4.13 %
Food & Drink	35835 5506	28231 4509	6336 785	1268 212	78.78 % 81.89 %	17.68 % 14.26 %	3.54 % 3.85 %
Home & Garden	35736 5540	28004 4516	6390 791	1342 233	78.36 % 81.52 %	17.88 % 14.28 %	3.76 % 4.21 %
Finance	36106 5409	26129 4165	8451 990	1526 254	72.37 % 77.00 %	23.41 % 18.30 %	4.23 % 4.70 %
Health	35266 5405	25854 4235	7940 927	1472 243	73.31 % 78.35 %	22.51 % 17.15 %	4.17 % 4.50 %
Pets	36215 5395	28096 4359	6755 818	1364 218	77.58 % 80.80 %	18.65 % 15.16 %	3.77 % 4.04 %
Sport & Fitness	36116 5705	26879 4470	7746 987	1491 248	74.42 % 78.35 %	21.45 % 17.30 %	4.13 % 4.35 %
Job & Career	35458 5520	26203 4267	7699 1012	1556 241	73.90 % 77.30 %	21.71 % 18.33 %	4.39 % 4.37 %
Dating	36050 5526	25599 4257	8831 998	1620 271	71.01 % 77.04 %	24.50 % 18.06 %	4.49 % 4.90 %
Other	35280 5392	27435 4358	6502 822	1343 212	77.76 % 80.82 %	18.43 % 15.24 %	3.81 % 3.93 %

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	44943 5348	32430 3956	10589 1108	1924 284	72.16 % 73.97 %	23.56 % 20.72 %	4.28 % 5.31 %
Outlook Mail	44648 5456	32601 4223	10084 965	1963 268	73.02 % 77.40 %	22.59 % 17.69 %	4.40 % 4.91 %
Yahoo Mail	44741 5540	33650 4391	9288 919	1803 230	75.21 % 79.26 %	20.76 % 16.59 %	4.03 % 4.15 %
AOL Mail	43892 5714	32975 4483	9019 953	1898 278	75.13 % 78.46 %	20.55 % 16.68 %	4.32 % 4.87 %
Mail.com	45122 5508	34478 4406	8886 863	1758 239	76.41 % 79.99 %	19.69 % 15.67 %	3.90 % 4.34 %
Yandex Mail	45262 5447	33399 4234	9950 964	1913 249	73.79 % 77.73 %	21.98 % 17.70 %	4.23 % 4.57 %
GMX Mail	44538 5398	33970 4415	8898 782	1670 201	76.27 % 81.79 %	19.98 % 14.49 %	3.75 % 3.72 %
Zoho Mail	44928 5510	34771 4478	8541 810	1616 222	77.39 % 81.27 %	19.01 % 14.70 %	3.60 % 4.03 %
ProtonMail	45185 5586	34954 4631	8611 774	1620 181	77.36 % 82.90 %	19.06 % 13.86 %	3.59 % 3.24 %
Custom Mail	45252 5466	35527 4485	8116 769	1609 212	78.51 % 82.05 %	17.94 % 14.07 %	3.56 % 3.88 %
iCloud Mail	5341 5572	3987 4238	1053 1095	301 239	74.65 % 76.06 %	19.72 % 19.65 %	5.64 % 4.29 %
Tuta	5338 5511	4328 4486	783 807	227 218	81.08 % 81.40 %	14.67 % 14.64 %	4.25 % 3.96 %
Juno.com	5485 5539	4520 4551	763 781	202 207	82.41 % 82.16 %	13.91 % 14.10 %	3.68 % 3.74 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.