SendGrid and Constant Contact Email Deliverability Comparison

SendGrid

Constant Contact

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

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
76.303 77.346	58.002 59.160	16.304 16.331	1.997 1.855

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. Constant Contact beats SendGrid in this comparison.

Inbox (%)	Spam (%)	Lost (%)
76.02 % 76.49 %	21.37 % 21.11 %	2.62 % 2.40 %

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, Constant Contact is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	5965 6015	4487 4536	1329 1321	149 158	75.22 % 75.41 %	22.28 % 21.96 %	2.50 % 2.63 %
Elektronics	5985 6084	4561 4706	1263 1241	161 137	76.21 % 77.35 %	21.10 % 20.40 %	2.69 % 2.25 %
Entertainment	5627 5962	4248 4530	1238 1296	141 136	75.49 % 75.98 %	22.00 % 21.74 %	2.51 % 2.28 %
Cosmetics & Beauty	5894 5949	4530 4622	1201 1188	163 139	76.86 % 77.69 %	20.38 % 19.97 %	2.77 % 2.34 %
Food & Drink	5868 5806	4443 4417	1272 1254	153 135	75.72 % 76.08 %	21.68 % 21.60 %	2.61 % 2.33 %
Home & Garden	5755 5795	4323 4396	1277 1256	155 143	75.12 % 75.86 %	22.19 % 21.67 %	2.69 % 2.47 %
Finance	5902 5969	4678 4754	1065 1065	159 150	79.26 % 79.64 %	18.04 % 17.84 %	2.69 % 2.51 %
Health	5737 6045	4557 4774	1031 1129	149 142	79.43 % 78.97 %	17.97 % 18.68 %	2.60 % 2.35 %
Pets	5824 6004	4417 4560	1263 1295	144 149	75.84 % 75.95 %	21.69 % 21.57 %	2.47 % 2.48 %
Sport & Fitness	5806 5946	4418 4551	1236 1258	152 137	76.09 % 76.54 %	21.29 % 21.16 %	2.62 % 2.30 %
Job & Career	5890 6056	4309 4472	1422 1444	159 140	73.16 % 73.84 %	24.14 % 23.84 %	2.70 % 2.31 %
Dating	6018 5776	4339 4195	1532 1438	147 143	72.10 % 72.63 %	25.46 % 24.90 %	2.44 % 2.48 %
Other	6032 5939	4692 4647	1175 1146	165 146	77.79 % 78.25 %	19.48 % 19.30 %	2.74 % 2.46 %

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, Constant Contact is better than SendGrid.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	5318 5532	3857 4057	1331 1345	130 130	72.53 % 73.34 %	25.03 % 24.31 %	2.44 % 2.35 %
Outlook Mail	5423 5594	4041 4159	1244 1303	138 132	74.52 % 74.35 %	22.94 % 23.29 %	2.54 % 2.36 %
Yahoo Mail	5322 5503	3990 4172	1195 1203	137 128	74.97 % 75.81 %	22.45 % 21.86 %	2.57 % 2.33 %
AOL Mail	5577 5586	4194 4225	1233 1218	150 143	75.20 % 75.64 %	22.11 % 21.80 %	2.69 % 2.56 %
Mail.com	5353 5356	4129 4161	1089 1066	135 129	77.13 % 77.69 %	20.34 % 19.90 %	2.52 % 2.41 %
Yandex Mail	5352 5541	4026 4195	1185 1217	141 129	75.22 % 75.71 %	22.14 % 21.96 %	2.63 % 2.33 %
GMX Mail	5779 5598	4295 4176	1318 1284	166 138	74.32 % 74.60 %	22.81 % 22.94 %	2.87 % 2.47 %
Zoho Mail	5400 5425	4167 4188	1098 1100	135 137	77.17 % 77.20 %	20.33 % 20.28 %	2.50 % 2.53 %
ProtonMail	5471 5479	4286 4288	1046 1054	139 137	78.34 % 78.26 %	19.12 % 19.24 %	2.54 % 2.50 %
Custom Mail	5498 5494	4336 4373	1018 988	144 133	78.87 % 79.60 %	18.52 % 17.98 %	2.62 % 2.42 %
iCloud Mail	5408 5331	3906 3899	1364 1307	138 125	72.23 % 73.14 %	25.22 % 24.52 %	2.55 % 2.34 %
Tuta	5273 5735	4094 4484	1033 1124	146 127	77.64 % 78.19 %	19.59 % 19.60 %	2.77 % 2.21 %
Juno.com	5599 5660	4363 4450	1079 1073	157 137	77.92 % 78.62 %	19.27 % 18.96 %	2.80 % 2.42 %
Mailfence	5530 5512	4318 4333	1071 1049	141 130	78.08 % 78.61 %	19.37 % 19.03 %	2.55 % 2.36 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.