Click the Export entry In the left menu of the Address page in AtMail. Once clicked, it provides a file named book.csv as a download.You can then import this into Roundcube's address book, via Contacts > Import. If you’re having trouble, give us a call.
If you are using Address Book Groups, using Import Group Assignments on the Roundcube import may work with the csv file exported from AtMail.If you have large groups that are too big to manage manually, give us a call.
By default, Roundcube has a Junk folder instead of Spam. If you move an email to Junk, It’s the same as if you were to move it to Spam on the previous AtMail system.To change the folder name to Spam, you can go to settings > preferences > special folders > enable “Show real names for special folders”
This should now be configured to display, however if you still can’t see the incoming email addresses, just go to settings > preferences > display messages > enable “Show email with display name” > save.