Re: security woes

Marcos Pinto wrote:
> i currently have postfix using header_checks to put on hold all emails
> being sent with attachments. the reason for this is that i need to
> decode base64 in those emails before they can be released. i'm doing
> this to check to make sure there isnt any kind of encrypted messages
> flowing out of my company. anyway, while a message is on hold, it
> gets malformated somehow and the command "perl -MMIME::Base64 -ne
> 'print decode_base64(print decode_base64($_))' <file" doesnt give me
> anything usable.

Postfix does not store the queued files/mails in plain text.

> however, once i release the message and run the
> exact same command on the mail file, i find what i'm looking for
> "AES256 Encrypted File". why would my decode only work once a message
> has been released? is there anything i can do to decode it while it's
> on hold? any help is greatly appreciated.

man 1 postcat

Cami