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
64.932 66.103	50.153 50.487	13.282 13.951	1.497 1.665

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 (%)
77.24 % 76.38 %	20.46 % 21.10 %	2.31 % 2.52 %

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	5103 4977	3943 3771	1047 1072	113 134	77.27 % 75.77 %	20.52 % 21.54 %	2.21 % 2.69 %
Elektronics	4961 5009	3866 3852	977 1040	118 117	77.93 % 76.90 %	19.69 % 20.76 %	2.38 % 2.34 %
Entertainment	5086 5116	3899 3886	1062 1101	125 129	76.66 % 75.96 %	20.88 % 21.52 %	2.46 % 2.52 %
Cosmetics & Beauty	5102 5279	3963 4045	1018 1107	121 127	77.68 % 76.62 %	19.95 % 20.97 %	2.37 % 2.41 %
Food & Drink	5136 5001	3928 3781	1081 1105	127 115	76.48 % 75.60 %	21.05 % 22.10 %	2.47 % 2.30 %
Home & Garden	4813 4977	3675 3791	1031 1055	107 131	76.36 % 76.17 %	21.42 % 21.20 %	2.22 % 2.63 %
Finance	5025 5118	4057 4100	845 886	123 132	80.74 % 80.11 %	16.82 % 17.31 %	2.45 % 2.58 %
Health	4953 4975	3995 3935	846 919	112 121	80.66 % 79.10 %	17.08 % 18.47 %	2.26 % 2.43 %
Pets	4990 5134	3847 3913	1031 1088	112 133	77.09 % 76.22 %	20.66 % 21.19 %	2.24 % 2.59 %
Sport & Fitness	4946 5185	3810 3982	1018 1073	118 130	77.03 % 76.80 %	20.58 % 20.69 %	2.39 % 2.51 %
Job & Career	4725 5080	3533 3747	1091 1217	101 116	74.77 % 73.76 %	23.09 % 23.96 %	2.14 % 2.28 %
Dating	5071 5024	3680 3611	1282 1280	109 133	72.57 % 71.88 %	25.28 % 25.48 %	2.15 % 2.65 %
Other	5021 5228	3957 4073	953 1008	111 147	78.81 % 77.91 %	18.98 % 19.28 %	2.21 % 2.81 %

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	4574 4685	3353 3432	1124 1143	97 110	73.31 % 73.26 %	24.57 % 24.40 %	2.12 % 2.35 %
Outlook Mail	4731 4657	3584 3475	1046 1060	101 122	75.76 % 74.62 %	22.11 % 22.76 %	2.13 % 2.62 %
Yahoo Mail	4397 4781	3385 3598	917 1056	95 127	76.98 % 75.26 %	20.86 % 22.09 %	2.16 % 2.66 %
AOL Mail	4653 4607	3547 3480	993 1009	113 118	76.23 % 75.54 %	21.34 % 21.90 %	2.43 % 2.56 %
Mail.com	4754 4835	3721 3743	926 970	107 122	78.27 % 77.41 %	19.48 % 20.06 %	2.25 % 2.52 %
Yandex Mail	4689 4750	3607 3572	980 1061	102 117	76.92 % 75.20 %	20.90 % 22.34 %	2.18 % 2.46 %
GMX Mail	4629 4776	3482 3573	1048 1083	99 120	75.22 % 74.81 %	22.64 % 22.68 %	2.14 % 2.51 %
Zoho Mail	4600 4790	3586 3709	907 958	107 123	77.96 % 77.43 %	19.72 % 20.00 %	2.33 % 2.57 %
ProtonMail	4628 4614	3668 3613	854 886	106 115	79.26 % 78.31 %	18.45 % 19.20 %	2.29 % 2.49 %
Custom Mail	4683 4741	3768 3725	799 904	116 112	80.46 % 78.57 %	17.06 % 19.07 %	2.48 % 2.36 %
iCloud Mail	4593 4652	3406 3421	1080 1108	107 123	74.16 % 73.54 %	23.51 % 23.82 %	2.33 % 2.64 %
Tuta	4570 4813	3628 3776	829 916	113 121	79.39 % 78.45 %	18.14 % 19.03 %	2.47 % 2.51 %
Juno.com	4647 4717	3662 3703	869 897	116 117	78.80 % 78.50 %	18.70 % 19.02 %	2.50 % 2.48 %
Mailfence	4784 4685	3756 3667	910 900	118 118	78.51 % 78.27 %	19.02 % 19.21 %	2.47 % 2.52 %

Compare SendGrid with other providers

Compare the email deliverability of SendGrid with other providers.