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by phoenix
Tue Aug 20, 2019 9:22 am
Forum: Administrators
Topic: Letters do not come with gmail
Replies: 11
Views: 2502

Re: Letters do not come with gmail

if I send gmail to mail from mail in mail.ru then everything works fine. That doesn't mean anything, perhaps the recipient server doesn't check SORBS RBL and therefore you mail will arrive. You need to determine why it appears the sending server IP address is blacklisted, this is not a problem with...
by phoenix
Tue Aug 20, 2019 5:03 am
Forum: Administrators
Topic: External relay change email "from" address to junk
Replies: 3
Views: 291

Re: External relay change email "from" address to junk

This can be seen in all out going mail headers. Mailgun does not provide a solution for this. I just want to know whether we can restrict this through Zimbra. I've already answered this above. Once the email has left your server teher's nothing you can do to stop another server adding headers, it w...
by phoenix
Mon Aug 19, 2019 6:21 pm
Forum: Administrators
Topic: External relay change email "from" address to junk
Replies: 3
Views: 291

Re: External relay change email "from" address to junk

Why do you find it necessary to send your mail through a relay? Can't you send the mail directly or could you use your ISP's servers to relay mail? FWIW, the relay host can do whatever it likes when you relay mail through them and once it's left your ZCS server there's nothing much you can do.
by phoenix
Mon Aug 19, 2019 3:37 pm
Forum: Administrators
Topic: ptr with 2 domain names
Replies: 3
Views: 266

Re: ptr with 2 domain names

You don't do that, you have one PTR record to the FQDN of the server for the primary Domain on your ZCS server. You could have found the answer with an internet search such as this: https://www.startpage.com/do/dsearch?query=ptr+dns+records+two+fqdns&cat=web&pl=opensearch&language=englis...
by phoenix
Mon Aug 19, 2019 2:36 pm
Forum: Administrators
Topic: Spam emails using my mail server
Replies: 1
Views: 109

Re: Spam emails using my mail server

Hi, My mail server is allowing passing external domains using my mail server to my local users. Example: Mail server: mail.mydomain.com From: fake@anotherdomain.com To: user@mydomain.com This is possible through telnet shipments (port 25) That is perfectly normal and how a mail server works. What Z...
by phoenix
Mon Aug 19, 2019 12:29 pm
Forum: Administrators
Topic: Letters do not come with gmail
Replies: 11
Views: 2502

Re: Letters do not come with gmail

ramm_89 wrote:How can I fix this?
The SORBS entry tells you the IP address is sending spam, you'll have to find out why that IP is sending spam, as it appears to be a google IP it's not a zimbra problem.
by phoenix
Mon Aug 19, 2019 9:57 am
Forum: Administrators
Topic: New admin account created automatically
Replies: 3
Views: 176

Re: New admin account created automatically

Take a look in this (Administrators) forum and the first post in the Topics section is what you need although I would have thought the word "exploited" in the title would have pointed you in the right direction.
by phoenix
Mon Aug 19, 2019 5:59 am
Forum: Administrators
Topic: New admin account created automatically
Replies: 3
Views: 176

Re: New admin account created automatically

Hi All, Today I saw our mail server have unusual Admin accounts created. I checked audit log and found below. I want to know under what user this account created. Server detail - Ubuntu 14.04/ZCS 8.7.11. Does anyone had this issue? Please help me to investigate this issue. It sounds like your syste...
by phoenix
Fri Aug 16, 2019 4:42 pm
Forum: Administrators
Topic: Disable Auth in port 25 (Not MUA)
Replies: 7
Views: 2749

Re: Disable Auth in port 25 (Not MUA)

Search the forums (and the internet) for fail2ban and read-up on how to use that.
by phoenix
Wed Aug 14, 2019 6:28 pm
Forum: Administrators
Topic: Can't see message bodies in mobile web interface
Replies: 4
Views: 1181

Re: Can't see message bodies in mobile web interface

Well, as far as I've known it for the past fifty years in the computer industry deprecated means that it's in the process of being replaced ny 'newer' ones and that upgrades may or may not work. There's no guarantee that my version i s correct and others may infer something else but here is the defi...

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