I have two urgent issues:

1. I have two email accounts on my iPhone, i-Pad, and Mac computer. As of yesterday, I am able to receive emails from only one of the accounts on my computer; I am not able to see any emails from my default account. So, I can see emails from both accounts on my i-Phone and i-Pad, but not on my computer.

2. Currently, I cannot send emails from my I-Pad  -  just from my i-Phone.

Please help me ASAP as I need to be able to review and send out documents from my computer default email account.

What can I do to fix these two issues?