Postmark and SendGrid Email Deliverability Comparison

Postmark

SendGrid

In this comparison, the deliverability of Postmark 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 Postmark than for SendGrid.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
77.364 76.020	60.340 57.862	15.418 16.204	1.606 1.954

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. Postmark beats SendGrid in this comparison.

Inbox (%)	Spam (%)	Lost (%)
77.99 % 76.11 %	19.93 % 21.32 %	2.08 % 2.57 %

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, Postmark is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	6125 5890	4737 4437	1265 1303	123 150	77.34 % 75.33 %	20.65 % 22.12 %	2.01 % 2.55 %
Elektronics	5829 6048	4554 4622	1152 1268	123 158	78.13 % 76.42 %	19.76 % 20.97 %	2.11 % 2.61 %
Entertainment	5939 5622	4607 4257	1218 1227	114 138	77.57 % 75.72 %	20.51 % 21.82 %	1.92 % 2.45 %
Cosmetics & Beauty	5972 5858	4699 4497	1157 1202	116 159	78.68 % 76.77 %	19.37 % 20.52 %	1.94 % 2.71 %
Food & Drink	5914 5897	4591 4470	1211 1282	112 145	77.63 % 75.80 %	20.48 % 21.74 %	1.89 % 2.46 %
Home & Garden	6083 5664	4729 4264	1227 1249	127 151	77.74 % 75.28 %	20.17 % 22.05 %	2.09 % 2.67 %
Finance	5980 5843	4887 4644	957 1041	136 158	81.72 % 79.48 %	16.00 % 17.82 %	2.27 % 2.70 %
Health	6023 5767	4892 4577	1009 1043	122 147	81.22 % 79.37 %	16.75 % 18.09 %	2.03 % 2.55 %
Pets	6058 5816	4677 4417	1257 1258	124 141	77.20 % 75.95 %	20.75 % 21.63 %	2.05 % 2.42 %
Sport & Fitness	5761 5815	4496 4441	1142 1221	123 153	78.04 % 76.37 %	19.82 % 21.00 %	2.14 % 2.63 %
Job & Career	5954 5804	4491 4254	1339 1399	124 151	75.43 % 73.29 %	22.49 % 24.10 %	2.08 % 2.60 %
Dating	5963 5947	4403 4274	1436 1532	124 141	73.84 % 71.87 %	24.08 % 25.76 %	2.08 % 2.37 %
Other	5763 6049	4577 4708	1048 1179	138 162	79.42 % 77.83 %	18.18 % 19.49 %	2.39 % 2.68 %

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, Postmark is better than SendGrid.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	5361 5282	3973 3834	1270 1320	118 128	74.11 % 72.59 %	23.69 % 24.99 %	2.20 % 2.42 %
Outlook Mail	5479 5454	4166 4062	1206 1254	107 138	76.04 % 74.48 %	22.01 % 22.99 %	1.95 % 2.53 %
Yahoo Mail	5570 5391	4261 4040	1199 1215	110 136	76.50 % 74.94 %	21.53 % 22.54 %	1.97 % 2.52 %
AOL Mail	5446 5521	4213 4151	1110 1226	123 144	77.36 % 75.19 %	20.38 % 22.21 %	2.26 % 2.61 %
Mail.com	5653 5367	4514 4152	1027 1084	112 131	79.85 % 77.36 %	18.17 % 20.20 %	1.98 % 2.44 %
Yandex Mail	5609 5350	4327 4037	1168 1180	114 133	77.14 % 75.46 %	20.82 % 22.06 %	2.03 % 2.49 %
GMX Mail	5412 5582	4097 4153	1202 1275	113 154	75.70 % 74.40 %	22.21 % 22.84 %	2.09 % 2.76 %
Zoho Mail	5461 5323	4290 4111	1060 1079	111 133	78.56 % 77.23 %	19.41 % 20.27 %	2.03 % 2.50 %
ProtonMail	5591 5454	4497 4278	986 1039	108 137	80.43 % 78.44 %	17.64 % 19.05 %	1.93 % 2.51 %
Custom Mail	5358 5505	4335 4348	915 1016	108 141	80.91 % 78.98 %	17.08 % 18.46 %	2.02 % 2.56 %
iCloud Mail	5528 5399	4107 3902	1298 1359	123 138	74.29 % 72.27 %	23.48 % 25.17 %	2.23 % 2.56 %
Tuta	5765 5338	4608 4173	1039 1019	118 146	79.93 % 78.18 %	18.02 % 19.09 %	2.05 % 2.74 %
Juno.com	5695 5551	4582 4322	982 1075	131 154	80.46 % 77.86 %	17.24 % 19.37 %	2.30 % 2.77 %
Mailfence	5436 5503	4370 4299	956 1063	110 141	80.39 % 78.12 %	17.59 % 19.32 %	2.02 % 2.56 %

Compare Postmark with other providers

Compare the email deliverability of Postmark with other providers.