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
76.020 77.377	57.862 59.263	16.204 16.280	1.954 1.834

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 (%)
76.11 % 76.59 %	21.32 % 21.04 %	2.57 % 2.37 %

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	5890 6015	4437 4543	1303 1315	150 157	75.33 % 75.53 %	22.12 % 21.86 %	2.55 % 2.61 %
Elektronics	6048 5993	4622 4631	1268 1231	158 131	76.42 % 77.27 %	20.97 % 20.54 %	2.61 % 2.19 %
Entertainment	5622 5899	4257 4481	1227 1279	138 139	75.72 % 75.96 %	21.82 % 21.68 %	2.45 % 2.36 %
Cosmetics & Beauty	5858 6021	4497 4690	1202 1197	159 134	76.77 % 77.89 %	20.52 % 19.88 %	2.71 % 2.23 %
Food & Drink	5897 5782	4470 4401	1282 1246	145 135	75.80 % 76.12 %	21.74 % 21.55 %	2.46 % 2.33 %
Home & Garden	5664 5876	4264 4474	1249 1257	151 145	75.28 % 76.14 %	22.05 % 21.39 %	2.67 % 2.47 %
Finance	5843 6015	4644 4788	1041 1078	158 149	79.48 % 79.60 %	17.82 % 17.92 %	2.70 % 2.48 %
Health	5767 5920	4577 4696	1043 1090	147 134	79.37 % 79.32 %	18.09 % 18.41 %	2.55 % 2.26 %
Pets	5816 5977	4417 4543	1258 1286	141 148	75.95 % 76.01 %	21.63 % 21.52 %	2.42 % 2.48 %
Sport & Fitness	5815 5999	4441 4594	1221 1265	153 140	76.37 % 76.58 %	21.00 % 21.09 %	2.63 % 2.33 %
Job & Career	5804 6103	4254 4526	1399 1440	151 137	73.29 % 74.16 %	24.10 % 23.59 %	2.60 % 2.24 %
Dating	5947 5847	4274 4248	1532 1457	141 142	71.87 % 72.65 %	25.76 % 24.92 %	2.37 % 2.43 %
Other	6049 5930	4708 4648	1179 1139	162 143	77.83 % 78.38 %	19.49 % 19.21 %	2.68 % 2.41 %

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	5282 5633	3834 4144	1320 1357	128 132	72.59 % 73.57 %	24.99 % 24.09 %	2.42 % 2.34 %
Outlook Mail	5454 5493	4062 4102	1254 1261	138 130	74.48 % 74.68 %	22.99 % 22.96 %	2.53 % 2.37 %
Yahoo Mail	5391 5663	4040 4284	1215 1244	136 135	74.94 % 75.65 %	22.54 % 21.97 %	2.52 % 2.38 %
AOL Mail	5521 5531	4151 4203	1226 1194	144 134	75.19 % 75.99 %	22.21 % 21.59 %	2.61 % 2.42 %
Mail.com	5367 5532	4152 4291	1084 1112	131 129	77.36 % 77.57 %	20.20 % 20.10 %	2.44 % 2.33 %
Yandex Mail	5350 5570	4037 4223	1180 1221	133 126	75.46 % 75.82 %	22.06 % 21.92 %	2.49 % 2.26 %
GMX Mail	5582 5556	4153 4157	1275 1266	154 133	74.40 % 74.82 %	22.84 % 22.79 %	2.76 % 2.39 %
Zoho Mail	5323 5370	4111 4153	1079 1083	133 134	77.23 % 77.34 %	20.27 % 20.17 %	2.50 % 2.50 %
ProtonMail	5454 5485	4278 4281	1039 1066	137 138	78.44 % 78.05 %	19.05 % 19.43 %	2.51 % 2.52 %
Custom Mail	5505 5348	4348 4248	1016 976	141 124	78.98 % 79.43 %	18.46 % 18.25 %	2.56 % 2.32 %
iCloud Mail	5399 5411	3902 3976	1359 1307	138 128	72.27 % 73.48 %	25.17 % 24.15 %	2.56 % 2.37 %
Tuta	5338 5676	4173 4454	1019 1096	146 126	78.18 % 78.47 %	19.09 % 19.31 %	2.74 % 2.22 %
Juno.com	5551 5700	4322 4490	1075 1073	154 137	77.86 % 78.77 %	19.37 % 18.82 %	2.77 % 2.40 %
Mailfence	5503 5409	4299 4257	1063 1024	141 128	78.12 % 78.70 %	19.32 % 18.93 %	2.56 % 2.37 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.