Gnus Manual - Incorporating Old Mail Go to the first , previous , next , last section, table of contents .
Most people have lots of old mail stored in various file formats.
If you have set up Gnus to read mail using one of the spiffy Gnus mail backends, you'll probably wish to have that old mail incorporated into your mail groups. Doing so can be quite easy. You have an old Unix mbox file filled with important, but old, mail. You want to move it into your nnml groups. All the mail messages in the mbox file will now also be spread out over all your nnml groups.