E-Mail-Account-Backup: Problems with filenames

Hello to all!

Since 08/2012 I'm using SBP v6... How could I ever lived without it? My backup-profil-"pool" is growing nearly every month...

This month task: Backup my Mails from IMAP-Server!

I'm using this variables for...

...ELM: %EMAIL_DATEYEAR%%EMAIL_DATEMONTH%%EMAIL_DATEDAY%_%EMAIL_FROMNAME%_%EMAIL_SUBJECT32%_%EMAIL_IDORMD5%

...content and attatchment:
\%EMAIL_DATEYEAR%%EMAIL_DATEMONTH%%EMAIL_DATEDAY%_%EMAIL_FROMNAME%_%EMAIL_SUBJECT32%\%EMAIL_IDORMD5%\

Problem 1:
Some filenames get too long. I can forecast the mails, which will cause trouble. They're always send by the same persons, so their mail-servers are suspicious. But how can I go around it? Is there an option to they: "SBP, if the filename's too long, do..."

Problem 2:
One of my communication-partners is using pretty often the slashes in the subject (Example: "WG: Fahrt nach HH/Kiel 14.11./15.11.") of the mail. When I backup those mails, I'm in trouble.

 Unable to save email body text to \\?\C:\Users\Dennis\Desktop\aktuelles Jahr\20111111_DennisK_WG Fahrt nach HH\Kiel 14.11.\15\OFA0A626F2.XXXXXXXXX-XXXXXXXX.00369609-C1257945.00369BB7@foobar.tld\body.txt: Cannot create file "C:\Users\DennisK\Desktop\aktuelles Jahr\20111111_Dennis Kielhorn_WG Fahrt nach HH\Kiel 14.11\15\OFA0A626F2.XXXXXXXXX-XXXXXXXX.00369609-C1257945.00369BB7@foobar.tld\body.txt". Unable to find the path.

Are there possible solutions to my problems?

Thank you in advance! Greetings from Germany...

Dennis