Mail error

[p_sheridan.825dd78@m.evern 0]

I can no longer send a scan from scannable via email on my iPhone 7. 
I get the message ‘mail error’ ‘this device is not set up to send mail. Please Configure an email account in the settings app’

i used to be able to simply email a scanned document but can not now. 
 

I haven’t changed anything on my phone. 
 

any help would be very much appreciated.