Make transparent wood by replacing most of the wood with other chemicals but keeping the cellulose. Kinda neat, I wonder how strong it actually is? Maybe worth just making some bookmarks or some such using this process. #>
About a month ago I finally got sick of getting spam email that claimed to be from myself so I implemented SPF checking on my side, these were useful links for me:
- SPF with SpamAssassin
- Dovecot.conf (includes SPF)
- Configure Sendmail to require valid SPF checks before accepting/relaying mail
- Spamilter
- spfmilter