CentOS News

CPE Weekly: 2020-04-14 – Blog.CentOS.org

# CPE Weekly: 2020-04-14 Hi All, Apologies for the delayed weekly mail, I enjoyed a lovely four-dayweekend with my family over Easter which was important and didn’t getaround to sending this email. The upside is you get two emails from me this week instead Background:The Community Platform Engineering group is Continue Reading

cPanel TSR-2020-0002 Full Disclosure | cPanel Newsroom

SEC-505 Summary Bandwidth suspensions can be triggered remotely via mail log strings. Security Rating cPanel has assigned this vulnerability a CVSSv3 score of 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L Description The regular expression patterns used to match bandwidth log lines in the mail log were not properly anchored. This allowed remote attackers to generate Continue Reading

CentOS Web Panel News

How to configure Spamassassin – Control WebPanel Wiki

Hi, there is how to configure Spamassassin + CWP’s mail server. First, we have to edit Postifx and SpamAssassin configs.The /etc/postfix/master.cf has few variants at the time (january 2019)a) mail server built without ClamAV+SA+Amavis (you must install SpamAssassin manually) smtp inet n – n – – smtpd # -o content_filter=smtp-amavis:127.0.0.1:10024 Continue Reading

How to Debug Mail Server issues

How to Debug Mail Server issues – Incoming Emails– Outgoing Emails– WebMail (Roundcube incoming/outgoing) Incoming emails===============Log Files Postifx (smtp server):/var/log/maillog Log Files Dovecot (pop3/imap server):/var/log/dovecot.log/var/log/dovecot-info.log/var/log/dovecot-debug.log From shell start tail on the log file by using this commandtail -f /var/log/maillog After you have set tail on the log file try to Continue Reading

Synacor Mail – Operation Zimbra for Service Providers, Part IV

This is the 4th webinar of the Synacor Zimbra mail operation for CSPs. For those who missed the earlier webinar, please refer to Part I, Part II and Part III Webinar 4 – Future Directions This is the 4th webinar of the Synacor Zimbra mail operation for CSPs. We will Continue Reading

Synacor Mail – Operation Zimbra for Service Providers, Part III

This is the 3rd webinar of the Synacor Zimbra mail operation for CSPs. For those who missed the earlier webinar, please refer to: Webinar 3 – Geo-Redundant Deployment of Zimbra This is the 3rd webinar of the Synacor Zimbra mail operation for CSPs. Matt will talk about the practical multi-site Continue Reading

Mail delivery failed to …

How to check your mail server reputation when mail is not delivered to the inbox Firstly check your mail server configuration on the following site:https://www.mail-tester.com/ You should test it by sending email from roundcube and email client software like outlook. Next, lets check your mail server reputation and rDNS/DNS matchhttp://www.senderbase.org Continue Reading

[Incident] Web and Mail server connectivity issue

Dear Customers, You may be getting intermittent connectivity issue to web and mail server during this period.   Service(s) affected : Shared Web(linweb03, linweb04), Mail server(mail1.readyspace.com.sg) Incident start time and date : 8:45 AM 26 April 2016 Incident end time and date : 10:00 AM 26 April 2016   Details : The server was Continue Reading

Business Email Scam: How Much Does a Million Dollar Cost?

Earlier this month, the Daily Mail published an article regarding foreign crime gangs stealing millions through hacking email accounts of house buyers and sellers. The con is simple – use malware to steal email credentials, study the content of compromised emails, and then use the collected information to social-engineer your Continue Reading