Fully automated bulletin boards for preprints in astronomy and astrophysics are available at SISSA (International School for Advanced Studies), Trieste, Italy. Preprints can be submitted and retrieved. It is also possible to subscribe to a daily distribution list containing authors and abstracts of the papers submitted to the bulletin board. The service is operated by listserver software at the address firstname.lastname@example.org (184.108.40.206). Preprints are mostly in TeX/LaTeX format but Postscript format as well as compression and/or encoding is also common. Facilities to use special macros are available, and figures in Postscript format may also be submitted. Anonymous FTP access is also possible. For further details, instructions, disclaimers, etc., send mail with a subject line saying help to the address given above. The same host also supports abstract services for other fields of physics.