[General] Zimbra email server suddenly stopped working!!

Thu Nov 18 23:09:31 +03 2010

Thanks Burhan for this information.

Best Regards,

============================

Eng. Sabah Al-Sabah

General Manager

Technical Systems Est.

sabah at techsys.net

www.techsys.net

============================

On 11/18/2010 10:16 PM, Burhan Khalid wrote:
> The advantage of quickly sending emails only truly comes into force if 
> you have a large volume of user-to-user emails.
>
> You can get the same speed in retrieving large emails by setting up an 
> IMAP aggregator on your network - your in-house email server is 
> basically doing the same thing when its delivering non-local emails.
>
> The same can be said about sending emails. The end user sees this 
> "speed" in sending the emails because you are only connecting to the 
> local SMTP instance on your local machine. Again, if you are sending 
> any emails out - the aggregate bandwidth (and by extension "speed") is 
> the same. The only difference is that instead of your clients 
> connecting directly to outbound MTAs, its your server that is connecting.
>
> There are advantages though of having in-house email server. One of 
> the main advantages is that you can do QoS on emails by setting up 
> priority queues. So emails from say ceo at company.com 
> <mailto:ceo at company.com> to board at company.com 
> <mailto:board at company.com> have a higher priority; or emails from 
> fianance@ with subject "Salary" have higher delivery priority.
>
> In reality though, this only makes sense if you have a large user base 
> and very large volume of emails. The truth is that if you monitor your 
> queues (be it either local or SMTP) you'll see that 99% of the time 
> the queue is empty (idle).
>
> Other minor advantages of in-house email servers (but this is quickly 
> being addressed by SaaS providers) is archiving/retrieval and other 
> compliance actions. The "quick and dirty" way employed by many is you 
> have a blackhole email which is relayed all emails.  Enterprise email 
> compliance devices (and  hosted email providers) will give you more 
> fine grain control, including things such as retention policy 
> enforcement, encryption, etc.
>
> Again, only makes sense if you have such requirements either from your 
> own internal audits or by some external pressure (as is the case with 
> banks and financials).
>
> In your scenario, I would carefully analyze the true cost of hosting 
> your own email service vs. deploying it on the cloud. Once you have 
> done some basic profiling of your email use; I'm sure you'll realize 
> that its actually cheaper to host it outside - especially considering 
> the small number of mailboxes.
>
> Regards,
> --
> Burhan Khalid
> On 18 Nov 2010, at 18:25, Eng. Sabah Al-Sabah wrote:
>
>> Majed,
>> I do not need many email boxes, however having the server locally has 
>> its advantages, like quick retrieval of large incoming emails and 
>> quick sending as well.
>> I also have mailman running locally.
>>
>> Thanks for the tip any way.
>>
>>
>> Best Regards,
>>
>> ============================
>>
>> Eng. Sabah Al-Sabah
>>
>> General Manager
>>
>> Technical Systems Est.
>>
>> sabah at techsys.net
>>
>> www.techsys.net
>>
>> ============================
>> <graphics1.gif>
>>
>> On 11/18/2010 06:15 PM, Majed B. wrote:
>>> Eng. Sabah, how many mailboxes do you have? Do you require having
>>> emails on a local server?
>>> Google Apps Standard is free and offers 50 mailboxes. It comes with
>>> GMail, Sites&  Docs.http://google.com/a/
>>>
>>> On Thu, Nov 18, 2010 at 6:03 PM, Eng. Sabah Al-Sabah<sabah at techsys.net>  wrote:
>>>> Although I have been using it for a couple of years, I am not happy with it!
>>>> It is an over kill, at least for my small organization. It takes too much resources.
>>>> It is too complex to manage or update.
>>>> It is not compatible with the stock email client on the android (Nexus One).
>>>>
>>>> Today as I was struggling to fix this problem, I really considered trashing it and reverting back the old sendmail.
>>>> But now that it is working again, I think I shall keep it!
>>>>
>>>> Best Regards,
>>>>
>>>> ============================
>>>>
>>>> Eng. Sabah Al-Sabah
>>>>
>>>> General Manager
>>>>
>>>> Technical Systems Est.
>>>>
>>>> sabah at techsys.net
>>>>
>>>> www.techsys.net
>>>>
>>>> ============================
>>>>
>>>> On 11/18/2010 05:57 PM, Bashar Al-Abdulhadi wrote:
>>>>
>>>> Yes 3650 for a decade. :D
>>>>
>>>>
>>>> Speaking of Zimbra dunno why redhat sold them to VMware, it was picking up in the region pretty well!
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: "Eng. Sabah Al-Sabah"<sabah at techsys.net>
>>>> Sender:general-bounces at oskw.org
>>>> Date: Thu, 18 Nov 2010 17:52:16
>>>> To: General OpenSource Discussion<general at oskw.org>
>>>> Reply-To: General OpenSource Discussion<general at oskw.org>
>>>> Subject: Re: [General] Zimbra email server suddenly stopped working!!
>>>>
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>>> --
>>>         Majed B.
>>>
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