Hi Jens,

Our addons do not block any e-mails, that would be ridiculous from our side, isn't.

This lock/blockade in your case can be from:

1. Server Security settings for Maling
2. Security settings from firewall component or Joomla settings (?)

On your place I would check using Joomla Contact form component - and compare results,

and yes, contact with hosting support as well.

It is not a secret that certain domains (for example .ru) is top in the number of spam messages sent, so they may be blocked.

The contact form on the same side is working well

Hmm, so I don't have idea, becuase we don't have any php code that may lock selected domains.

BTW

Q: Have You used Contact addon or Form Builder addon, please check both.

Form builder is more flexible, and has more modern code.

Contact addon for the normal contact page, but for reservations I needed the formbuilder. Everything is working well, but If I put my .info email in the form, it says field is not filled

Sorry, but I have no idea what it can be. Maybe that word is somehow restricted. I don't have any @info mail to make tests.

Maybe easier would be just rebuild Contact form using Form Builder addon. It will be even more flexible for your purpose.

Could it be, that Formbuilder doesn't accept a info@name@info adress as a email adress like if you forget the @?

Can we change it?