Cannot install DMARCGuard, bug with 'IMAP port' field

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This category is for issues regarding specific apps, NOT general issues with YunoHost.

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This form is written in English but feel free to write in French if you’re more comfortable!

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What app is this about, and its version

DMARCGuard, 1.6.0~ynh1

What YunoHost version are you running

12.1.41.2

What type of hardware are you using

Old laptop or computer

Describe your issue

Trying to install, and the “IMAP port” field will seemingly not accept any value. It gives me this error, exactly:

Value must be a number equal or lesser than .

I’m trying to use the value 993, which coincidentally is the default value for that field.

Seems like a bug. Help?

Share relevant logs or error messages

n/a

I was able to install via cli, but now the page is blank when I try to navigate to https://mydomain.foo/dmarcguard … what am I doing wrong?