Mail server not working with Postfix Dovecot

Mariano Jara Melagrani mjaramelagrani at gmail.com
Mon Dec 7 15:17:36 UTC 2015


On 07/12/15 08:29, Gene Heskett wrote:
> On Monday 07 December 2015 05:29:15 iceblink wrote:
> 
>> On 2015-12-07 08:42, Petter Adsen wrote:
>>> Where is this machine - is it in your home or hosted somewhere? If
>>> in your home, that is not ideal. Many (most?) ISPs block common
>>> ports for incoming SMTP traffic for home customers, and a lot of
>>> mail servers out there will not accept mail from a ISP home consumer
>>> IP range. You *will* have problems getting your mail delivered. I
>>> suspect this is what you are doing, and that is part of why you are
>>> having problems.
>>
>> This is probably different for each country. Here in the Netherlands
>> most ISP's will not block any port (at least not until they find that
>> your PC is sending spam or has an open relay mail server). The biggest
>> challenge in my country is getting a fixed IP address, or failing
>> that: keeping your DNS up to date with the changing IP addresses.
>>
>> Best regards,
>> Patrick
> 
> I had that problem after my router failed, and found that my ISP issues 
> an address via dhcp based on the mac address of the router requesting an 
> address.
> 
> Cloning the mac address of the failed router into the new one put me back 
> on the address registered at namecheap, so my web page, on this machine, 
> is back in business.
> 
> Cheers, Gene Heskett
> 
Every now and then I get a different public IP address from my ISP, so
I've solved it with a cron job which checks and updates the current IP
address to a service like http://freedns.afraid.org/.

-- 
Atte.
Mariano Jara Melagrani
http://www.jaramelagrani.com.ar/

0x80319128 GnuPG v1.4 (GNU/Linux)
http://pgp.mit.edu/
http://keyserver.pgp.com/
http://keyserver.ubuntu.com:11371/



More information about the ubuntu-users mailing list