Mailgun and Postmark Email Deliverability Comparison

In this comparison, the deliverability of Mailgun and Postmark 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 Mailgun than for Postmark.

Emails Sent	Emails Inbox	Emails Spam	Emails Lost
70.621 70.968	59.074 58.513	9.097 9.753	2.450 2.702

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. Mailgun beats Postmark in this comparison.

Inbox (%)	Spam (%)	Lost (%)
83.65 % 82.45 %	12.88 % 13.74 %	3.47 % 3.81 %

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, Mailgun is the clear winner.

Category	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Clothing	5455 5537	4694 4670	596 662	165 205	86.05 % 84.34 %	10.93 % 11.96 %	3.02 % 3.70 %
Elektronics	5506 5505	4688 4609	657 710	161 186	85.14 % 83.72 %	11.93 % 12.90 %	2.92 % 3.38 %
Entertainment	5486 5319	4572 4371	722 741	192 207	83.34 % 82.18 %	13.16 % 13.93 %	3.50 % 3.89 %
Cosmetics & Beauty	5455 5459	4544 4481	702 760	209 218	83.30 % 82.08 %	12.87 % 13.92 %	3.83 % 3.99 %
Food & Drink	5489 5286	4710 4509	607 615	172 162	85.81 % 85.30 %	11.06 % 11.63 %	3.13 % 3.06 %
Home & Garden	5259 5504	4502 4690	580 635	177 179	85.61 % 85.21 %	11.03 % 11.54 %	3.37 % 3.25 %
Finance	5406 5547	4393 4403	801 882	212 262	81.26 % 79.38 %	14.82 % 15.90 %	3.92 % 4.72 %
Health	5332 5399	4404 4378	743 795	185 226	82.60 % 81.09 %	13.93 % 14.72 %	3.47 % 4.19 %
Pets	5455 5541	4645 4634	649 706	161 201	85.15 % 83.63 %	11.90 % 12.74 %	2.95 % 3.63 %
Sport & Fitness	5451 5361	4507 4375	765 794	179 192	82.68 % 81.61 %	14.03 % 14.81 %	3.28 % 3.58 %
Job & Career	5428 5466	4379 4371	809 862	240 233	80.67 % 79.97 %	14.90 % 15.77 %	4.42 % 4.26 %
Dating	5361 5448	4345 4352	803 862	213 234	81.05 % 79.88 %	14.98 % 15.82 %	3.97 % 4.30 %
Other	5538 5596	4691 4670	663 729	184 197	84.71 % 83.45 %	11.97 % 13.03 %	3.32 % 3.52 %

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, Mailgun is better than Postmark.

Provider	Emails Sent	Emails Inbox	Emails Spam	Emails Lost	Inbox (%)	Spam (%)	Lost (%)
Gmail	5348 5436	4174 4170	941 988	233 278	78.05 % 76.71 %	17.60 % 18.18 %	4.36 % 5.11 %
Outlook Mail	5402 5238	4410 4220	775 802	217 216	81.64 % 80.57 %	14.35 % 15.31 %	4.02 % 4.12 %
Yahoo Mail	5309 5421	4413 4433	707 778	189 210	83.12 % 81.77 %	13.32 % 14.35 %	3.56 % 3.87 %
AOL Mail	5513 5516	4578 4503	737 787	198 226	83.04 % 81.64 %	13.37 % 14.27 %	3.59 % 4.10 %
Mail.com	5534 5408	4667 4479	685 721	182 208	84.33 % 82.82 %	12.38 % 13.33 %	3.29 % 3.85 %
Yandex Mail	5457 5347	4455 4318	785 814	217 215	81.64 % 80.76 %	14.39 % 15.22 %	3.98 % 4.02 %
GMX Mail	5358 5484	4596 4626	605 665	157 193	85.78 % 84.35 %	11.29 % 12.13 %	2.93 % 3.52 %
Zoho Mail	5534 5625	4721 4750	639 689	174 186	85.31 % 84.44 %	11.55 % 12.25 %	3.14 % 3.31 %
ProtonMail	5446 5409	4692 4615	579 611	175 183	86.15 % 85.32 %	10.63 % 11.30 %	3.21 % 3.38 %
Custom Mail	5320 5524	4603 4718	559 628	158 178	86.52 % 85.41 %	10.51 % 11.37 %	2.97 % 3.22 %
iCloud Mail	5359 5547	4262 4341	875 961	222 245	79.53 % 78.26 %	16.33 % 17.32 %	4.14 % 4.42 %
Tuta	5523 5570	4720 4705	628 682	175 183	85.46 % 84.47 %	11.37 % 12.24 %	3.17 % 3.29 %
Juno.com	5518 5443	4783 4635	582 627	153 181	86.68 % 85.16 %	10.55 % 11.52 %	2.77 % 3.33 %

Compare Mailgun with other providers

Compare the email deliverability of Mailgun with other providers.