Hello I have a problem with Outlook.

I use a custom email (info@mh-automation.com).
When I send an E-Mail via Outlook it works normally but I can't recieve any. I asked my provider about the setting of IMAP and he told me what I should put in but it still doesn't work. Then we tried it with another programm and there I can revieve Mails. So whats the problem with Outlook? Can anyone please help me?

Best Regards
Variox