"{Blocked Content} Warning: E-mail error detected" with no particular reason!

Jan-Peter Koopmann Jan-Peter.Koopmann at SECEIDOS.DE
Tue May 25 17:36:07 IST 2004


On Tuesday, May 25, 2004 6:13 PM Idan Plotnik
<mailto:idan at SECURENET.CO.IL> wrote:

> Here you go...
> And thanks a lot!

PLEASE tell me this is a joke...

> # The maximum size, in bytes, of any attachment in a message.
> # If this is set to zero, effectively no attachments are allowed.
> # If this is set less than zero, then no size checking is done.
> # This can also be the filename of a ruleset, so you can have
> different # settings for different users. You might want to
> set this quite small for # large mailing lists so they don't
> get deluged by large attachments.
> Maximum Attachment Size = 10

Have you actually read this? You are telling MailScanner that you allow
max 10byte (BYTE!!!!!) attachments. If I am informed correctly all
MIME-parts of a mail are treated as attachments by MailScanner.
Therefore if you send a text mail in correct MIME format, MailScanner
will see the text as first attachment. And guess what: That text is
bigger than 10 bytes!


What annoys me a little bit is that the log file itself gave you the
clue:

> MailScanner[1585]: Attachment size check: 333 > 10 

and then Ugo responded with 

> You must know that the max size setting is in bytes, not in megs.

Please... Have a look at the log, the answers and your config... It
would have been easy to look for all occurences of "10" in
MailScanner.conf and take an educated guess that a 

Maximum Attachment Size = 10

might be the problem here. I agree, MailScanners interpretation of
"attachment" is SMPT-like and not MUA-like. A MailScanner attachment is
not equal to an Outlook attachment. But still... Fool around with these
values a bit more. And seriously: 10 byte attachments... Either block
all attachments or allow a reasonable size.

Sorry for the bad mood... It is just that I see quite some questions
from you that are either answered quite clearly with you ignoring the
answer or that might have been solved by reading the docs. Again sorry
for my "overreaction". No offense...

Kind regards,
  JP

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