With the introduction of the the Flex plan and the elimination of the free plan the "Inbound Routing" feature is no longer available for the entry level plan.

This broke a major use case for Mailgun as routes are an essential feature even for low mail volume accounts.

$35 to acquire mail routing is just infeasible when you only use 200 e-mails per month.

Mailgun needs to somehow allow Flex plan users to either have a pay-per-use for routing or make it available outright. Otherwise you are saying you do not really need these low volume customers.

There is currently not any support for credit card payments that have an extra factor of authentication (specifically VISA 3D Secure Authentication, in this case).
Stripe provides documentation on how to add this support within their integration: https://stripe.com/docs/payments/3d-secure

The payment option. Please add PayPal or more currency available. With my CC if i pay $1 USD because my CC is in GBP i will pay additonal tax of 15 GBP, so don t make sense for us to pay the invoice. So, add additional currency and payments methods. Thank you.

Hello.
Please enable Inbox Placement test for EU domains.
Thank you.

Being able to track opens and clicks and consume that data via the Analytics dashboard is awesome. However, most emails that we send out contain multiple links - e.g. for account activation, homepage, featured blog post, social links, etc.

I would like to be able to have analytics on a per-link basis. Mailchimp allows this, see https://i.imgur.com/2iIocrv.png.

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.

Please do not provide dates in mm-dd-yy format. It is very confusing. Please use yyyy-mm-dd

I rarely use SMTP, mostly I just use the API keys. Last month the SMTP password was Brute Force and stolen, the attacker send over 100k emails from my domain which I had to pay for. I would like some ways to help prevent that in the future.

I would like to export data from the "Logs" screen.

I would like to have the ability to recall emails sent trough mailgun.
Sometimes you send a email by accident.
If the same thing happens in Outlook you are able to recall the email.
This is very important when you send out invoices etc.

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.

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.

When creating templates, having the ability to enter our own custom test JSON data to apply against the preview would be very helpful.

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

The "Add Filter" popup window the "Logs" form seems to be missing "Failed" as a possible event in the dropdown filter choice. I see "Failed" for one item on the first page of my log, but there seems to be no way to tell the filter to show me just items with event = "Failed". I can select "Rejected" from dropdown, but that returns zero records from the log.

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.