Attachment Size in Postfix

[rajesh.bahl]

Dear All,

Need your help in resolving a problem:-

Our mail server is running on Postfix on CentOS 4.5.
Working is okay, but we need two more functionalities:-

1. The attachment size is 1MB maximum for any mail. Can we increase the maximum size of attachments to say 3 MB ?
2. We need to ban the sending/receiving of attachments having files like exe,bat,vbs etc. etc.

Can we do the same in postfix ?



Thanking In Advance
rajesh.bahl

[rsw686]

The attachment size isn't controlled with postfix. You need to set the attachment size in your imap / pop server settings, might be courier or dovecot.

To filter out attachments I found the following example

In the postfix main.cf add

Code: [Select]

mime_header_checks = regexp:/etc/postfix/mime_header_checks.regexp

In mime_header_checks_regexp

Code: [Select]

/^\s*Content-(Disposition|Type).*name\s*=\s*"?(.+\.(lnk|asd|hlp|ocx|reg|bat|c[ho]m|cmd|exe|dll|vxd|pif|scr|hta|jse?|sh[mbs]|vb[esx]|ws[fh]|wav|mov|wmf|xl))"?\s*$/
   REJECT Attachment type not allowed. File "$2" has the unacceptable extension "$3"