The new capability to show a rendering of the message on the dashboard is fantastic, but would be nice if we could request this via the API for display on our side.

Allow adding address such as the following to suppress lists so that known bad domains can be preemptively blocked.

test@baddomain.com
@extrabaddomain.com

Please add support for International Domain Names.

As a marketing tool we're sending email on behalf of numerous clients and their domains. Some of those clients are either using Mailgun directly or through another marketing service.

This causes problems when they attempt to validate their DKIM and SPF records, as we can't add their domain to our account.

Adding a sub-domain instead is a work-around at best and transferring the domain to our account is impossible most times, so being able to share domains across Mailgun accounts would fix this nicely.

The current limit of 1000 mailing lists/account is insufficient.
Increase it to at least 10,000.

I would love to be able to store my email for long term and use it as an archive of those emails.
I would be ready to pay as per storage used.

It might be helpful for some users if the "/messages" API endpoint would accept attachments as Base64-encoded strings, with a name and content-type described somehow.

Right now mailgun SDK provides no method to download attachment given we have the URL. Only method is to download the attachment via language specific libraries like open-uri for ruby and we have to pass parameters for authorization. It would be great if there is a pre-built method to download attachments easily

It would be nice to have the option to list all the stored messages (excluding the deleted ones).

Today the only way to get the list of stored messages is to get it by the events API, so there's no way to get only the non-deleted messages, or to get all the stored messages in a single request.

The search feature should allow for some sort of partial or wildcard search (eg. "@domain.com" or "m@domain.com" or even just on name

In Mailgun you should be able to use a test api key to experiment with Mailgun's API. No mail should be sent, but webhooks should trigger normally and you should be able to generate synthetic bounces and complaints without impacting your reputation.

This also lets the developer to setup a development environment that is similar to the production environment without the risk of sending any mails by misstake.

https://documentation.mailgun.com/api-routes.html#actions

It could be usefull for testing/debuging bounces or complaints.

Allowing the smtp account and the api to be used from specified ip addresses would greatly enhance security for sends.

We had a bug on our end that sent the same message to the same recipient thousands of times—resulting in thousands of spam reports while we were oblivious until months later.

While there are things we could do on our end to improve quality control and ops, etc., it would be amazing if Mailgun could provide a duplicate detection feature. I'm imagining saving a hash of content for sent messages, and catching any time we repeat the content to any recipient. A repeat could be prevent, or an alert sent, or both.

While in the Logs tab, it would be very helpful to have the option to view/search logs for all of our domains at one time instead of one by one individually. This could be simply integrated by adding an "All Domains" option at the very top of the domain drop down in the Logs tab.

We would like to pay you guys real money to have the option to extend our log retention...there have been many cases where we need more than 30 days, and we dont want to setup webhook or anything external...your UI is perfectly good!

...you like money right

To have the capability for me to set certain mailing list members as authorized sends, rather than an all or nothing situation.