This recommended update provides version 4.48.0 for getmail:

- Update getmail to 4.48.0:
* work around brain-damaged change in Python's poplib which causes
message retrieval errors if any line of a message has more than
2048 characters in it.
* restore link to moved Marc mailing list archive.
- Changes from 4.47.0:
* try to work around pathological breakage in one random POP server
implementation.
* remove dead marc.theaimsgroup.com list archive from docs.
* bugfix: if you combined IMAP IDLE mode with delete_after, getmail would,
after remaining connected to the server for the number of days configured,
begin deleting messages immediately after retrieval instead of after the
configured delay. Now fixed.