Spam protection for zimbra collaboration suite

Hello there, Have you considered on integrate Zimbra with RSpamd? Please check RSpamd and let me know if that's good enough for your setup or not. If you have questions please contact me. Kind regards, Bogdan S

This depends a great deal on: 1. what version of Zimbra you are currently running; and 2. what architecture you currently have in place (because some solutions are best implemented on a separate host); 3. the scale of your current implementation. I have 20+ years of experience in Linux System Administration and managing mail servers from the basic underlying MTAs (Postfix, qmail, sendmail, exim) to DB integration for user management and spam solutions including spamassassin (and amavis), greylisting and RBLs. There are two ways of doing this: 1. Implement directly on your Zimbra server. This could have a higher complexity and a greater chance of affecting the stability of your Zimbra server. You may also be limited in what can be done. But, it keeps everything on one box. 2. Move your MX to deliver your mail to a spam cleaning server that then delivers it onward to your Zimbra server once cleaned. This is architecturally much cleaner, gives you maximum flexibility and does not require any major changes to the Zimbra server. I would recommend the latter approach: - Depending on your hosting environment and mail volume, all that may be required is a mid-spec Virtual Server; - If you have not implemented greylisting, this is a very effective and simple first step; - Then, I would suggest the implementation of a suit of tools like spamassassin and amavis; - Management console. Finally, you should consider security of outgoing mail and investigate SPF, DMARC and DKIM.

Hello Greetings for the day and hope all are good. I have seen your project description and it’s a good opportunity for me. After Understanding the all requirements I can assure you that I can provide you fully creative and the best results according to your needs within your due time. I have a very professional team of good web Developers, graphics Designers, Programmer and content Writers. They are always ready to meet the deadlines. Hope we will talk more so that we can discuss your project in detail. Thanks & Regards Yasmeen

Hello, I think you can use scrolloutf1 as gateway.. After you decided what you want to install and setup scrolloutf1 or not we can help about this project. In the other hands we have cluster mail gateway topology which we manage in Turkey give as a SAAS This is not open source but powerfull.. Important thing in using mail gateway just be sure for zimbra only accept mail from gateway.. Becauce if you do not close than spammers can bypass gateway.. If you have any question, we will happy to assist.. Regards, CK