Who is allowed to forward spam/ham to spamassassin training accouts

[bonobo]

According to :
Zimbra MTA - Zimbra :: Wiki
"you can manually forward messages as message/rfc822 attachments to the spam and non-spam mailboxes."

who is allowed to forward spam/ham to the two training accounts? can an external user do that? for example can i use my gmail account to send, as attachment, spam/ham to my company two training accounts?

Or, is there away to limit who can send spam/ham to those two accounts?

Thanks

[phoenix]

Anyone can send to the ham/spam training accounts, if you wish to restrict who can send to them then look in the wiki at how to Restrict Postfix Recipients.

[uxbod]

Would you please also update your profile with the output from

su - zimbra
zmcontrol -v

[bonobo]

RestrictPostfixRecipients - Zimbra :: Wiki
"This method can be spoofed by forging the MAIL FROM: header (so mail appears to originate from within the domain), so it isn't foolproof, but it works for basic needs. "

Is there another way to restrict who can forward ham/spam to zimbra training accounts?

Since anybody can forward mail to the spam/ham accounts, wouldn't they be able to fill up your spam account with good mail and your ham account with bad mail? "i am talking about people with bad intentions"

Thanks

[uxbod]

Only if they know the account names and you could always change them

[bonobo]

thank you
one other question, with version of zimbra 5.0.12 is it true if a users identify an email as a spam that specific email will be MARKED as spam for ALL other users?

should I open a new thread since it is a different topic?

[uxbod]

The bayes database is global so all users would inherit the SPAM/HAM. You may wish to vote for Bug 3870 - per user Spam Assassin score.