Hi @Gianni Petrella ,
Currently in Microsoft Q&A we only support English, could you please use English in the following description? Then we can help to solve your issues. And we are researching based on machine translation, it seems that you are encountering delays receiving external email messages.
Which is a known issue, if you are the administrator, you can search EX680695 in the Dashboard and check the latest update of the issue. Some users reported that this problem has been solved. If the problem still exists, please wait patiently.
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