@eva i have not changed my ISP@Oliver its not just a single its more than 40 users in our organization so the issue of disk space is out of equation  when i change my SMTP server to smtpout.myispp.com the Mails are going but i cant Receive 

On Tue, Feb 18, 2014 at 12:47 PM, Oliver Ndegwa <olie.ndegwa@gmail.com> wrote:

If you are on outlook end user, ensure that your SMTP  requires authentication or not depending on whether u are using mdaemon or exchange.

Another major reason why this would happen is if your hard disk is full. Check your space..

Try refresh your dns if there any changes that have happened lately and check that your settings as regards IP addresses match the current scenario as you know it. You could be using wrong IPs or something. eliminate all these options...

Oliver

On Tue, Feb 18, 2014 at 12:27 PM, Eva Kimathi <evakimathi@gmail.com> wrote:

I had a similar problem a little while ago and the scenario then is that we had changed our ISP. Had to request them to refresh their DNS cache and i did the same on my end and it was sorted. You could try that.

On Tue, Feb 18, 2014 at 11:49 AM, Steve Kyengo <k.stevo08@gmail.com> wrote:

Hi Oliver,
Am not listed in any of the blacklist i have managed to talk with my ISP they still insist the issue is with my Firewall, Icannot ping my Host IP neither can i Telnet

On Tue, Feb 18, 2014 at 11:27 AM, Oliver Ndegwa <olie.ndegwa@gmail.com> wrote:

can you ping the mail host IP from your LAN?

Can you access webmail from your LAN?

If so then you need to check your firewall, ensure that all smtp ports are open or forwarded where necessary.

I also suggest that you talk with your ISP the problem could also be coming from there.. Your Public IP could be black listed.

Another problem would be if you have changed your network class lately there are config details in your mailserver set up that  you need to update. 

So there are many reasons why your mailserver would fail to fetch or send..

Trace your steps first then we can get you a solution as you zero in on something. Right now the reasons are endless..

Regards

Oliver

On Tue, Feb 18, 2014 at 11:16 AM, Steve Kyengo <k.stevo08@gmail.com> wrote:

Morning Skunks,

Am having a challenging situation with my Mails.i cant send/receive while on my LAN But am able to access my Mails on my mobile devices without any Qualms. When i try to Access my Webmail+Cpanel on any Machine in my LAN am unable to reach it but possible on my mobile device and outside our LAN.Thats why i don't think its an issue my Mail Host. Am beginning to its my Firewall which is blocking All the ports associated with Mail server. Anybody who has experienced the same or is there a Cyberoam Guru around?
Kind Regards,
--

Kind Regards,

Tel: +254 727 049692

Twitter: Sadaqsteve

Skype: steve.kyengo

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Skype: steve.kyengo

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__________________________________________________________________________ 
Out of clutter, find simplicity. From discord, find harmony. In the middle of difficulty, lies opportunity

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Eva Kimathi

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