Is Proton-Mail not allowed in this forum?

[musictooth]

I tried to create an account using my standard email address (ending in @proton.me), but the site wouldn't accept it. However, I was able to use a random temporary-email-provider. Afer I created this account I tried changing it in the User Control Panel, but had no luck either, which is unfortunate since I will eventually lose access to the temporary email.
Is Proton-Mail banned, or did I do something wrong?

[Woodstock]

Yes, proton.me is one of several domains blocked for past spam activity. Quite a few proton.me users instantly started posting spam messages, to the point where the domain was finally blocked.

It is unfortunate for the people who find a legitimate reason to use them, but you're actually the first person to ask about it since the domain was banned several years ago.

[musictooth]

Unlucky. Thanks for the response, though.

[mercilessming2000]

is gmail not allowed? I have made a few post recently that I didn't get reason for not being posted or they got posted.

[Woodstock]

You are required to have a minimum number of posts on the forum to "post freely", due to the spam we get. Me being sick for 12 days screwed that up. I have made an inquiry of the author to deal with that.