Is it possible to get the mails resent from the mailserver or something.. I have my adresses at One.com (the website creator)
If emails have been deleted from your mailbox on the server end, you would first “check your mail account trash folder” to see if they are there to restore. Normally they would be there.
If nothing in your account trash folder, then “contact your fml online mailbox technical support” to see if they can possibly restore it. Some mailbox providers keep daily backups.
If they carn’t restore it, then you would have to ask the email senders to resend their emails.