Q: I can´t send or receive emails theres a message Too many simultaneous connections. (Failure)

Hi monic,

I'm sorry to hear you are having mail issues on your Mac. I'm a bit unclear exactly which version of OS X you are currently using, but if you continue to have issues sending or receiving emails, you may find the troubleshooting steps outlined in the following article helpful:

OS X Mail: Troubleshooting sending and receiving email messages - Apple Support

Regards,

- Brenden