Mailgun only lets you view html content for up to 3 days. I think lots of people will be happy to pay for this feature. This is only thing that makes me think if I should switch to PostMark

The new stats available via tags is great, but if I want the total stats for a particular tag, I have to get them grouped monthly and sum them myself.

A lot of dropped Webhooks do not contain error or description what you can find in the Logs.

I received to this theme from Mailgun support this information: "From what I can see in the code, the data we post is sourced from the envelope. If the envelope is too old (no longer stored) it will not post with the dropped Webhook."

You should have a breakdown of unique opens for each ESP, not just the total number of opens.

I would love to be able to add a route address to a mailing list. That would let me be subscribed with an address that matches the domain of the list, and lets me send to that list with that matching domain rather than a different one.

When a mailing list is forwarding emails, it replaces the To recipient with the list recipient. But if the original To user was not the mailing list itself, the original recipient is lost and list users won't see him in their copy of the email.

Incoming email:
To: random_user@example.com
Cc: mailinglist@example.com

Forwarded email:
To: listrecipient@example.com
(and the randomuser is lost..)

I propose you put the original To recipient to Cc first if necessary to avoid this situation.

Currently the quick view of a message does not support emoji's they just render as a square.

Sometimes certain emails won't deliver when forwarded due to DMARC verification problems.

It would be incredibly useful to have the ability to respond to these emails within the web interface instead of having to learn the API and respond to emails that way.

Please provide a field for VAT number to be included into invoices.
Thankn you

This would mean that Mailgun has to support us uploading the apple-app-site-association file (and equivalent Android file), Maligun would also have to support https request this way.

Adding an option to let Mailgun rebuild routed messages if they're going to fail on destination.
For example DKIM signed messages sent to Mailgun that are routed will fail.

For monitoring, it would be very useful if shared links like those used by google, dropbox, monitis etc. were available.

These links should contain an obscure, non-guessable identifier such as a GUID.

There is a lot of detail on the Mailgun site to get lost in. Some case study examples would help lessen the learning curve. Some I can think of are:
1. Using Mailgun with a Wordpress Domain host.
2. Using Mailgun with popular Newsletter applications.
3. Setting up multiple Mailgun domains on your DNS host.
etc.

Currently the mail log contains both the events for inbound and outbound email. In some cases I only want to see the outbound mail or the inbound mail. I'd be nice if I can somehow limit the log to either of these.

Under Reporting Section, we have filters based upon domain and Tagging . Please provide the same filters options on Logs Section to provide better filtered out results.

Currently we have to type manually in Search bar of Logs section.

For various privacy/legal reasons it would be good to have servers in non U.S. regions/zones. (Kind of like what AWS does.)

It would be useful to search for terms in specific field explicitly. At the moment searching for an email address will match on From as well as To fields.
Gmail supports search terms of the form "to:name@domain.com" or "from:name@domain.com"

You should log config changes. This will allow problems to be tracked back to the source quicker and aid in fault diagnosis. E.g. we had a problem on 12/01/2017 what config changes did we make? Log what changed from what, to what, log who changed it and when.

Please add the possibility to forward feedback loop emails so that we can use other tools to analyse them in more detail then Mailgun provides...