Search found 151 matches

by bhwong
Wed May 18, 2016 2:33 am
Forum: Administrators
Topic: Reliable Android email for Zimbra?
Replies: 2
Views: 672

Reliable Android email for Zimbra?

Many Android users complains that their default mail app cannot connect to Zimbra outside unless they are connected to the same internal network as the Zimbra server. However, iPhone users do not has this issue. What could be the possible cause and is there any alternative mail app for Android that ...
by bhwong
Mon May 16, 2016 2:51 am
Forum: Administrators
Topic: Zimbra does not send e-mail to Microsoft domain
Replies: 17
Views: 7734

Re: Zimbra does not send e-mail to Microsoft domain

The only solution is to beg the the recipient to add email from zimbra server as a contact first? This will not be practical at all. When we use Gmail or Yahoo Mail to send to Hotmail or Live mail, they do not need to add these account as contact. I hope Zimbra can talk to Microsoft about this issue.
by bhwong
Tue May 10, 2016 3:24 am
Forum: Administrators
Topic: Images permission issue
Replies: 0
Views: 545

Images permission issue

We have company logo in our email signature and it often appear as a broken link in the recipients' email.

Sometimes, Zimbra even prompt us to enter our login when we create a new email with email signature.

What went wrong?
by bhwong
Thu Mar 31, 2016 6:24 am
Forum: Administrators
Topic: How to prevent hacker multiple login attempt?
Replies: 3
Views: 2520

How to prevent hacker multiple login attempt?

Some of our accounts keep getting locked out as hackers target these accounts by attempting to perform repeated logins. I Tried renaming some of these account name hoping that the hackers will not be able to target the correct login name. However, as I also have to recreate the original account name...
by bhwong
Wed Mar 30, 2016 8:56 am
Forum: Administrators
Topic: huge SSL error from vRealize
Replies: 0
Views: 752

huge SSL error from vRealize

Any deploy vmware vRealize and notice huge amount of SSL error in Zimbra.log? Mar 29 15:23:16 zimbra postfix/submission/smtpd[2514]: connect from unknown[192.168.190.117] Mar 29 15:23:16 zimbra postfix/submission/smtpd[2514]: SSL_accept error from unknown[192.168.190.117]: 0 Mar 29 15:23:16 zimbra p...
by bhwong
Mon Mar 07, 2016 7:26 pm
Forum: General Questions
Topic: Scam targeting Zimbra
Replies: 0
Views: 640

Scam targeting Zimbra

Surprise to see that Zimbra is getting popular enough for hackers to target us! Many of our users have been receiving email from infoz@zimbra.com asking them to verify their accounts. [Show Original] reveals that this spam origin from: Received: from [172.20.10.5] (unknown [156.170.227.186])by mail....
by bhwong
Mon Jan 25, 2016 11:54 pm
Forum: Administrators
Topic: What is the Right Name to amend distribution list?
Replies: 1
Views: 334

What is the Right Name to amend distribution list?

The easiest way is to add them under the owners menu
by bhwong
Mon Jan 25, 2016 9:01 pm
Forum: Administrators
Topic: What is the Right Name to amend distribution list?
Replies: 1
Views: 334

What is the Right Name to amend distribution list?

We would like to dedicate the update of distribution list to some end users so that they can amend their own distribution list within their own account login under their contacts page.  How can we grant them the rights to do so without granting them full domain administrator rights? What i...
by bhwong
Tue Dec 29, 2015 8:38 pm
Forum: Administrators
Topic: Possible to overcome known spam attack within Zimbra itself?
Replies: 6
Views: 3159

Possible to overcome known spam attack within Zimbra itself?

I have deployed cbpolicyd with this condition: Rate limit any sender from sending more then 20 emails every 60 seconds. Messages beyond this limit are deferred. I found out that if a sender has 1 email to more than 20 recipients, the email will not even sent. Why? 1. I do not agree that this fulfill...
by bhwong
Thu Dec 17, 2015 10:17 pm
Forum: Administrators
Topic: Restore a backup Zimbra Server for testing?
Replies: 10
Views: 1956

Restore a backup Zimbra Server for testing?

I have raised a support case and the tech support suggest that I use split DNS, which also include the dnsmasq you have suggested: https://wiki.zimbra.com/wiki/ZCS_to_ZCS_rsync_Migration https://wiki.zimbra.com/wiki/Split_DNS However, the article appears to be discussing on resolving routing issues ...

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