I usually avoid entering my credit card info, especially for subscription services. It will be nice to have option for "credits/digital wallet" similar to DigitalOcean or Vultr, where you could pay in advance for example via PayPal.

It would be a HUGE time saver if the .zip file for a validated list contained a file for each category. IE: file1 - file with all addresses as the system currently functions. file2 - a file containing only deliverable addresses. file 3 - a file containing only unknown addresses.... etc. Thank you!

Mailgun should have its own Mail Tester app. mail-tester.com charges after just 3 emails, kinda frustrating. Sendgrid provides their own email testing tool. Thanks.

I have several distinct domains and/or several subdomains that send mail from the same Exchange environment. I'd like to use mailgun as the outgoing smarthost for this system, but mailgun seems to require unique SMTP AUTH credentials for each of the unique primary domains, which means that many outbound emails will not be deliverable through this smarthost since the outgoing server doesn't support unique SMTP AUTH creds for each outgoing domain...

We have the need for an admin user role who is not the account owner to not be able to access billing information

Please implement an alert feature, so that I can see if an exceptional number of emails are being sen, as this indicates something is wrong, but I doesn't stop authentic emails going out.

So, it would be very helpful if we have a possibility to use Handlebars custom helpers feature in templates, because of existing built-in Handlebars helpers can not cover all the cases for rendering hard structured data

Would be good to see code of previous tests in Inbox placement

It would be nice that when you create a template, users don't get redirected to the all the TEMPLATES screen. Instead once the template is created we can update the template by loading the /edit/{template_alias} url into the website (so that it works the same way as when you edit a template)

Allow us to edit a web hook instead of delete then insert a web hook.

I didn't mind so much that you removed the free tier even though that's why I tried and have used mailgun over past years. Flex plan removing the pay as you go validation service is a dealbreaker for me though and now has me exploring Sendgrid, Amazon SES and on-premise solutions for replacing this feature.

I should be able to delete domains from the domain list without needing to verify the domain first

Is there a way to provide billing alerts for when I cross a threshold or amount?

I like the forced random very long SMTP password, however limiting it to hex values (0-9 and a-f) severely limits it's usefulness when used as an encryption routine because an attacker can limit their search in a brute force method with that knowledge.

For full cryptographic coverage the random passwords should utilize more of the available character set.

Option to have multiple API keys, for example: client 1 has the API key exposed, we now have to roll this key, and update all clients using it.

Whereas, if we had multiple keys, we'd only need to roll and update that one client using the key.

Allow graphs when filtering by terms other than event status. Example would be if I wanted to see how many times a certain email address had a permanent fail, allow the chart to display in logs along with entries.

Enable that links are not rewritten when using click/open tracking and maintain the original link from the html template sent.