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
438.027 44.630	330.244 35.409	90.425 7.341	17.358 1.880

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 (%)
75.39 % 79.34 %	20.64 % 16.45 %	3.96 % 4.21 %

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	33667 3531	26349 2886	6066 517	1252 128	78.26 % 81.73 %	18.02 % 14.64 %	3.72 % 3.63 %
Elektronics	33415 3448	25454 2744	6709 545	1252 159	76.18 % 79.58 %	20.08 % 15.81 %	3.75 % 4.61 %
Entertainment	33654 3446	25335 2717	6954 576	1365 153	75.28 % 78.85 %	20.66 % 16.72 %	4.06 % 4.44 %
Cosmetics & Beauty	33691 3476	25389 2760	6984 576	1318 140	75.36 % 79.40 %	20.73 % 16.57 %	3.91 % 4.03 %
Food & Drink	33730 3502	26488 2868	6044 510	1198 124	78.53 % 81.90 %	17.92 % 14.56 %	3.55 % 3.54 %
Home & Garden	33744 3408	26361 2774	6115 494	1268 140	78.12 % 81.40 %	18.12 % 14.50 %	3.76 % 4.11 %
Finance	34034 3412	24516 2617	8084 632	1434 163	72.03 % 76.70 %	23.75 % 18.52 %	4.21 % 4.78 %
Health	33220 3384	24247 2645	7604 588	1369 151	72.99 % 78.16 %	22.89 % 17.38 %	4.12 % 4.46 %
Pets	34152 3326	26407 2674	6455 508	1290 144	77.32 % 80.40 %	18.90 % 15.27 %	3.78 % 4.33 %
Sport & Fitness	34038 3524	25245 2753	7395 619	1398 152	74.17 % 78.12 %	21.73 % 17.57 %	4.11 % 4.31 %
Job & Career	33428 3437	24634 2661	7343 640	1451 136	73.69 % 77.42 %	21.97 % 18.62 %	4.34 % 3.96 %
Dating	34008 3383	24034 2600	8468 618	1506 165	70.67 % 76.85 %	24.90 % 18.27 %	4.43 % 4.88 %
Other	33246 3353	25785 2710	6204 518	1257 125	77.56 % 80.82 %	18.66 % 15.45 %	3.78 % 3.73 %

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	42858 3332	30887 2455	10167 701	1804 176	72.07 % 73.68 %	23.72 % 21.04 %	4.21 % 5.28 %
Outlook Mail	42630 3377	31015 2603	9740 611	1875 163	72.75 % 77.08 %	22.85 % 18.09 %	4.40 % 4.83 %
Yahoo Mail	42656 3413	31978 2698	8946 572	1732 143	74.97 % 79.05 %	20.97 % 16.76 %	4.06 % 4.19 %
AOL Mail	41862 3581	31371 2809	8692 606	1799 166	74.94 % 78.44 %	20.76 % 16.92 %	4.30 % 4.64 %
Mail.com	43040 3414	32797 2740	8571 537	1672 137	76.20 % 80.26 %	19.91 % 15.73 %	3.88 % 4.01 %
Yandex Mail	43141 3442	31731 2664	9594 617	1816 161	73.55 % 77.40 %	22.24 % 17.93 %	4.21 % 4.68 %
GMX Mail	42456 3346	32271 2737	8603 491	1582 118	76.01 % 81.80 %	20.26 % 14.67 %	3.73 % 3.53 %
Zoho Mail	42893 3381	33094 2743	8256 506	1543 132	77.15 % 81.13 %	19.25 % 14.97 %	3.60 % 3.90 %
ProtonMail	43164 3475	33274 2866	8345 494	1545 115	77.09 % 82.47 %	19.33 % 14.22 %	3.58 % 3.31 %
Custom Mail	43176 3448	33800 2827	7842 491	1534 130	78.28 % 81.99 %	18.16 % 14.24 %	3.55 % 3.77 %
iCloud Mail	3319 3557	2465 2691	667 710	187 156	74.27 % 75.65 %	20.10 % 19.96 %	5.63 % 4.39 %
Tuta	3385 3433	2739 2774	508 510	138 149	80.92 % 80.80 %	15.01 % 14.86 %	4.08 % 4.34 %
Juno.com	3447 3431	2822 2802	494 495	131 134	81.87 % 81.67 %	14.33 % 14.43 %	3.80 % 3.91 %

Compare Constant Contact with other providers

Compare the email deliverability of Constant Contact with other providers.