Search found 186 matches

by zimico
Sat Oct 03, 2020 2:59 am
Forum: Administrators
Topic: About Razor2
Replies: 1
Views: 1370

Re: About Razor2 (solved)

My razor2 now is working! I tried to add some additional steps: - Create .pyzor, .razor and .spamassassin directories, as root user: mkdir -p /opt/zimbra/.pyzor chown zimbra:zimbra /opt/zimbra/.pyzor mkdir -p /opt/zimbra/.razor chown zimbra:zimbra /opt/zimbra/.razor mkdir -p /opt/zimbra/.spamassassi...
by zimico
Wed Sep 30, 2020 10:31 am
Forum: Administrators
Topic: About Razor2
Replies: 1
Views: 1370

About Razor2

Dear everyone, Are you using Razor? I install and set up Pyzor and Razor according to Zimbra Wiki but only see Pyzor score and never see Razor2 score. When testing a spam email sample (/opt/zimbra/common/bin/spamassassin -D < sample-spam.txt), I see Razor info as the following: check_razor2: 1971 (1...
by zimico
Wed Sep 02, 2020 5:05 am
Forum: Administrators
Topic: how to prevent email with ransomware in attachment ?
Replies: 11
Views: 2720

Re: how to prevent email with ransomware in attachment ?

Hi,
You can follow this wonderful wiki from Jim: https://wiki.zimbra.com/wiki/JDunphy-SA-RuleWriting
Jim has some script that check the message header to confirm your rules work well or not.
Regards,
Minh.
by zimico
Wed Sep 02, 2020 3:19 am
Forum: Administrators
Topic: how to prevent email with ransomware in attachment ?
Replies: 11
Views: 2720

Re: how to prevent email with ransomware in attachment ?

Hi,
Which Zimbra version are you using?
zmcontrol -v
I am using Zimbra 8.8.15, if you are using old zimbra version, please google for the exact path.
You should put all your customization config in sauser.cf as Zimbra's suggestion.
Regards,
Minh.
by zimico
Tue Sep 01, 2020 11:42 am
Forum: Administrators
Topic: how to prevent email with ransomware in attachment ?
Replies: 11
Views: 2720

Re: how to prevent email with ransomware in attachment ?

Hi,
Please replace example.com with your real domain.
You should test your configuration by running:
$/opt/zimbra/common/bin/spamassassin --lint
After that, restart your antispam:
$zmantispamctl restart
Regards
Minh.
by zimico
Mon Aug 31, 2020 10:48 am
Forum: Administrators
Topic: how to prevent email with ransomware in attachment ?
Replies: 11
Views: 2720

Re: how to prevent email with ransomware in attachment ?

Hi,
The exact file location on Zimbra 8.8 is: /opt/zimbra/data/spamassassin/localrules/sauser.cf

Code: Select all

-rw-r----- 1 zimbra zimbra 14740 Aug 31 10:35 /opt/zimbra/data/spamassassin/localrules/sauser.cf

If you do not have this file you can create it.
Regards,
Minh
by zimico
Sat Aug 29, 2020 3:36 pm
Forum: Administrators
Topic: how to prevent email with ransomware in attachment ?
Replies: 11
Views: 2720

Re: how to prevent email with ransomware in attachment ?

Hi, You can use the following rule (put it in /opt/zimbra/data/spamassasin/localrules/sauser.cfg. I learned this from Mr. Jim (JDunphy): # Protect against sproofing header __Z_FROM_BODY From =~ /example\.com/i header __Z_FROM_SMTP Return-Path =~ /\@example.com/i meta Z_SPOOFED_FROM (!__Z_FROM_SMTP &...
by zimico
Fri Aug 28, 2020 5:08 am
Forum: Administrators
Topic: Non existent account spamming
Replies: 4
Views: 704

Re: Non existent account spamming

Hi,
If you know who is sending spam out, you should go and check/scan her/his PC/Laptop/Mobile for virus/malware. For example, if her/his PC is infected, malware/virus can use this PC (Outlook or other mail clients) to send out spam without knowing password.

Regards,
Minh.
by zimico
Fri Aug 28, 2020 3:05 am
Forum: Zimbra Connector for Outlook
Topic: SSL error for muliple domain while connecting from outlook
Replies: 3
Views: 2005

Re: SSL error for muliple domain while connecting from outlook

Hi,
I use Letsencrypt for multidomain/single server and do not have this issue. However, I believe that you should follow this wiki: https://wiki.zimbra.com/wiki/Multiple_S ... ation_(SNI)_for_HTTPS

Regards,
Minh.
by zimico
Fri Aug 28, 2020 3:01 am
Forum: Administrators
Topic: Non existent account spamming
Replies: 4
Views: 704

Re: Non existent account spamming

Hi,
You can follow this wiki: https://wiki.zimbra.com/wiki/Spamming_troubleshooting

Regards,
Minh.

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