Mail app limit exchange

Hello matteo_1987

Thank you for posting in Apple Support communities. We understand that you are wanting to know if there are message limits on the mail app for sending and receiving. We would love to provide you support with this. 

The article that you used to create this post tells you about message limits as follows:

• The total number of messages you can send each day (1000 messages)
• The number of recipients you can message each day (1000 recipients)
• The maximum number of recipients per message (500 recipients)
• The size of incoming and outgoing messages (20MB, up to 5GB with Mail Drop turned on)

If your email address is something other than @icloud.com, @mac.com, @me.com then you would have to contact that email provider to get their message limits.

Thank you for allowing us to support you.

Have an awesome and productive day!