Error 552 MS-Office file containing VBA macros found inside of the email in proxmox email gateway

[sanojs]

Hi Team,

For every email with office documents, emails are getting blocked and showing the below error in logs. Can we avoid this in proxmox email gateway?

Jul 3 12:08:05 relay postfix/smtp[123456]: dhcudchd: to=<.com>, relay=8***[***]:25, delay=4, delays=0.02/0/2.3/1.6, dsn=5.0.0, status=bounced (host *.com[****] said: 552 MS-Office file containing VBA macros found inside of the email (in reply to end of DATA command))
dsn=5.0.0, status=bounced (host aspmx.l.google.com[*****] said: 552 MS-Office file containing VBA macros found inside of the email (in reply to end of DATA command))
Jul 3 20:21:21 relay postfix/smtp[123456]: 12345gdhj: to=****, relay=aspmx.l.google.com***:25, delay=2.8, delays=0.01/0.01/2.1/0.71, dsn=5.0.0, status=bounced (host aspmx.l.google.com*** said: 552 MS-Office file containing VBA macros found inside of the email (in reply to end of DATA command))

I could see an option to make the ScanOLE2 false. Is this recommended one? do we need to restart any service once made any changes in clamd.conf file?

root@proxmox:~# cat /etc/clamav/clamd.conf | grep -i OL
FollowDirectorySymlinks false
FollowFileSymlinks false
ScanOLE2 true
root@relay:~#

 

[Stoiko Ivanov]

Please try to keep the logs in a way that makes understanding the flow still possible - else it's hard to understand which system rejected the mail and why ...

In that case i think that the problem is not with PMG's configuration but with the remote system

(host aspmx.l.google.com*** said: 552 MS-Office file containing VBA macros found inside of the email (in reply to end of DATA command))

I think the google mail-servers reject the mails because they contain office documents with VBA macros:
* don't send office-documents with macros (as many mail-server will reject those (usually a good practice)
* ask google if/how you can change your mails so that they are accepted

I hope this helps!