Amazon SES and Constant Contact Email Deliverability Comparison

In this comparison, the deliverability of Amazon SES 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 Amazon SES than for Constant Contact.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
137.187 530.277	117.149 403.712	15.603 105.972	4.103 20.815

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. Amazon SES beats Constant Contact in this comparison.

Inbox (%)	Spam (%)	Lost (%)
85.39 % 76.13 %	11.37 % 19.98 %	2.99 % 3.93 %

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, Amazon SES is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	10419 40632	9129 32019	1015 7158	253 1495	87.62 % 78.80 %	9.74 % 17.62 %	2.43 % 3.68 %
Elektronics	10683 40546	9201 31196	1126 7859	304 1502	86.13 % 76.94 %	10.54 % 19.38 %	2.85 % 3.70 %
Entertainment	10587 40837	9022 31053	1202 8163	321 1609	85.22 % 76.04 %	11.35 % 19.99 %	3.03 % 3.94 %
Cosmetics & Beauty	10589 40751	9030 31012	1200 8190	323 1590	85.28 % 76.10 %	11.33 % 20.10 %	3.05 % 3.90 %
Food & Drink	10547 40859	9202 32285	1045 7170	276 1432	87.25 % 79.02 %	9.91 % 17.55 %	2.62 % 3.50 %
Home & Garden	10722 40992	9370 32241	1063 7253	275 1528	87.39 % 78.65 %	9.91 % 17.69 %	2.56 % 3.73 %
Finance	10474 41210	8743 30117	1358 9377	348 1732	83.47 % 73.08 %	12.97 % 22.75 %	3.32 % 4.20 %
Health	10498 40218	8832 29754	1297 8796	346 1658	84.13 % 73.98 %	12.35 % 21.87 %	3.30 % 4.12 %
Pets	10542 41399	9089 32229	1125 7638	312 1542	86.22 % 77.85 %	10.67 % 18.45 %	2.96 % 3.72 %
Sport & Fitness	10559 41096	8905 30802	1282 8650	338 1672	84.34 % 74.95 %	12.14 % 21.05 %	3.20 % 4.07 %
Job & Career	10522 40479	8799 30133	1359 8627	330 1739	83.62 % 74.44 %	12.92 % 21.31 %	3.14 % 4.30 %
Dating	10339 41028	8620 29477	1371 9762	358 1810	83.37 % 71.85 %	13.26 % 23.79 %	3.46 % 4.41 %
Other	10706 40230	9207 31394	1160 7329	319 1506	86.00 % 78.04 %	10.84 % 18.22 %	2.98 % 3.74 %

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, Amazon SES is better than Constant Contact.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	10671 50012	8624 36298	1575 11588	413 2145	80.82 % 72.58 %	14.76 % 23.17 %	3.87 % 4.29 %
Outlook Mail	10324 49777	8708 36623	1289 11025	305 2142	84.35 % 73.57 %	12.49 % 22.15 %	2.95 % 4.30 %
Yahoo Mail	10713 49762	9110 37606	1242 10191	321 1994	85.04 % 75.57 %	11.59 % 20.48 %	3.00 % 4.01 %
AOL Mail	10391 48893	8817 36967	1215 9893	322 2056	84.85 % 75.61 %	11.69 % 20.23 %	3.10 % 4.21 %
Mail.com	10612 50332	9091 38640	1168 9775	322 1929	85.67 % 76.77 %	11.01 % 19.42 %	3.03 % 3.83 %
Yandex Mail	10470 50448	8801 37471	1317 10910	355 2108	84.06 % 74.28 %	12.58 % 21.63 %	3.39 % 4.18 %
GMX Mail	10544 49450	9153 37906	1064 9706	290 1844	86.81 % 76.66 %	10.09 % 19.63 %	2.75 % 3.73 %
Zoho Mail	10860 49926	9427 38810	1119 9360	294 1779	86.80 % 77.74 %	10.30 % 18.75 %	2.71 % 3.56 %
ProtonMail	10470 50258	9145 39070	1007 9442	280 1785	87.34 % 77.74 %	9.62 % 18.79 %	2.67 % 3.55 %
Custom Mail	10461 50144	9176 39496	1024 8916	246 1765	87.72 % 78.77 %	9.79 % 17.78 %	2.35 % 3.52 %
iCloud Mail	10581 10260	8703 7751	1492 2000	384 509	82.25 % 75.55 %	14.10 % 19.49 %	3.63 % 4.96 %
Tuta	10577 10417	9200 8401	1085 1606	290 403	86.98 % 80.65 %	10.26 % 15.42 %	2.74 % 3.87 %
Juno.com	10513 10598	9194 8673	1006 1560	281 356	87.45 % 81.84 %	9.57 % 14.72 %	2.67 % 3.36 %

Compare Amazon SES with other providers

Compare the email deliverability of Amazon SES with other providers.