Check multiple email accounts at once

Anyone know of a way to check multiple email accounts at once from my phone, it takes too long to have to log into each email account one by one to find that email someone said they sent to you but your not sure which email account it went to. I have something like 20 email accounts for different purposes.
Would be nice to somehow be able to collect or forward them all to one central place.
Thanks
Answer #1
Well in case of android and the gmail app that’s pretty easy. Click the “show all inbox” on the left and you’re done. Swipe down to refresh them all at once.
Answer #2
You can also use a good email client and add multiple accounts. They will be all in one place and letting you do two actions instead of 40…
Answer #3
which is what gmail app already does.
Answer #4
so if i have a account for example @gmail.com – it can collect or forward emails from other non-gmail accounts to this one master address, does it also delete emails from the other accounts once forwarded or collected to @gmail.com as an example ? #3.10: All links must be coded, including, but not limited to:

Link(s) coded. -
Answer #5
You will have all the emails in the same screen but the emails will not be forwarded to a single account. For your eyes, the two things will be nearly identical the only things that will change between forwarding all the emails to one account and having multiple accounts in one page, is the source or destination of the emails, it will tell you from what email address you sent or received the message.
http://www.knowyourmobile.com/mobile-phones/best-android-email-apps/22475/very-best-android-email-apps-2015
I use K-9 and Gmail.
Answer #6
gmail app collects them just like a pc’s outlook can do. I’ve got it configured to read my android gmail and 4-5 personal non-gmail addresses. Works just fine.