I think it is totally unaccepatable in 2017 to have limited email sizes!!!!
It is a big nuisance to not be able to send a few pics or docs in 1 email.
Worth considering an other provider even!
I'd suggest using Gmail or Outlook.com perhaps.
All ISP emails are very basic in terms of features, compared with gmail etc.
The other option you could look is uploading photos to Google Drive, Dropbox or another cloud alternative and sharing the photos that way.