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 SendGrid than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
75.883 77.376	58.419 58.851	15.646 16.516	1.818 2.009

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 (%)
76.99 % 76.06 %	20.62 % 21.35 %	2.40 % 2.60 %

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	5963 5909	4546 4440	1277 1299	140 170	76.24 % 75.14 %	21.42 % 21.98 %	2.35 % 2.88 %
Elektronics	6002 5925	4662 4507	1193 1276	147 142	77.67 % 76.07 %	19.88 % 21.54 %	2.45 % 2.40 %
Entertainment	5767 5885	4427 4452	1196 1281	144 152	76.76 % 75.65 %	20.74 % 21.77 %	2.50 % 2.58 %
Cosmetics & Beauty	5849 6227	4533 4782	1172 1289	144 156	77.50 % 76.79 %	20.04 % 20.70 %	2.46 % 2.51 %
Food & Drink	5864 5860	4503 4417	1220 1298	141 145	76.79 % 75.38 %	20.80 % 22.15 %	2.40 % 2.47 %
Home & Garden	5642 5802	4306 4390	1204 1255	132 157	76.32 % 75.66 %	21.34 % 21.63 %	2.34 % 2.71 %
Finance	5836 6052	4668 4809	1022 1080	146 163	79.99 % 79.46 %	17.51 % 17.85 %	2.50 % 2.69 %
Health	5787 5852	4662 4597	989 1112	136 143	80.56 % 78.55 %	17.09 % 19.00 %	2.35 % 2.44 %
Pets	5847 5969	4494 4523	1217 1290	136 156	76.86 % 75.77 %	20.81 % 21.61 %	2.33 % 2.61 %
Sport & Fitness	5781 6013	4456 4597	1182 1262	143 154	77.08 % 76.45 %	20.45 % 20.99 %	2.47 % 2.56 %
Job & Career	5626 5970	4169 4390	1327 1438	130 142	74.10 % 73.53 %	23.59 % 24.09 %	2.31 % 2.38 %
Dating	5974 5874	4319 4241	1523 1471	132 162	72.30 % 72.20 %	25.49 % 25.04 %	2.21 % 2.76 %
Other	5945 6038	4674 4706	1124 1165	147 167	78.62 % 77.94 %	18.91 % 19.29 %	2.47 % 2.77 %

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	5221 5498	3834 4015	1276 1347	111 136	73.43 % 73.03 %	24.44 % 24.50 %	2.13 % 2.47 %
Outlook Mail	5479 5450	4125 4036	1225 1268	129 146	75.29 % 74.06 %	22.36 % 23.27 %	2.35 % 2.68 %
Yahoo Mail	5230 5564	3999 4177	1107 1237	124 150	76.46 % 75.07 %	21.17 % 22.23 %	2.37 % 2.70 %
AOL Mail	5433 5387	4108 4058	1189 1189	136 140	75.61 % 75.33 %	21.88 % 22.07 %	2.50 % 2.60 %
Mail.com	5580 5602	4346 4317	1107 1144	127 141	77.89 % 77.06 %	19.84 % 20.42 %	2.28 % 2.52 %
Yandex Mail	5471 5579	4172 4177	1176 1266	123 136	76.26 % 74.87 %	21.50 % 22.69 %	2.25 % 2.44 %
GMX Mail	5383 5520	4056 4113	1196 1260	131 147	75.35 % 74.51 %	22.22 % 22.83 %	2.43 % 2.66 %
Zoho Mail	5433 5492	4211 4223	1092 1119	130 150	77.51 % 76.89 %	20.10 % 20.38 %	2.39 % 2.73 %
ProtonMail	5334 5503	4222 4269	984 1086	128 148	79.15 % 77.58 %	18.45 % 19.73 %	2.40 % 2.69 %
Custom Mail	5464 5501	4394 4341	933 1021	137 139	80.42 % 78.91 %	17.08 % 18.56 %	2.51 % 2.53 %
iCloud Mail	5390 5570	3977 4087	1283 1338	130 145	73.78 % 73.38 %	23.80 % 24.02 %	2.41 % 2.60 %
Tuta	5469 5715	4328 4450	1006 1120	135 145	79.14 % 77.87 %	18.39 % 19.60 %	2.47 % 2.54 %
Juno.com	5495 5583	4329 4370	1025 1068	141 145	78.78 % 78.27 %	18.65 % 19.13 %	2.57 % 2.60 %
Mailfence	5501 5412	4318 4218	1047 1053	136 141	78.49 % 77.94 %	19.03 % 19.46 %	2.47 % 2.61 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.