Steps to follow when server is moved under new IP

[protik]

Actually new ISP had port 25 blocked, so I called and requested block to be
removed.
I can receive emails fine, so I called again to see if they are blocking
outgoing but they replied if port 25 is open then its open both ways (maybe
I should somehow check if outgoing port is open)

As for reverse DNS then yes my domain registrar takes care of it (but I'll
check again).

I'm confused about SSL certificate, because I don't think I use SSL
certificate (or at least I use self signed certificate), I'll read up more
about this

Thanks for your help


On Tue, Dec 15, 2015 at 11:21 PM, Sruli Saurymper <sruli at saurymper.com>
wrote:

> SPF and reverse DNS are not a must to get outgoing to work but many (maybe
> most?) will not accept emails from servers who do not have these
> configured. SPF record you setup in your DNS records reverse DNS you have
> to request from your ISP.
> I don't know what to make of your current error, doesn't sound like its
> linked to SFP/DNS issue, is your SSL certificate IP or domain bound?
> now-days only domain bound certs are issued, does your ISP allow sending
> mail on port 25?
> I cant help you much further on this, I am sure if you find more info in
> your log file and post someone will be able to help you.
>
>
> On 16/12/15 07:07, protik wrote:
>
>> I have only setup kolab through wiki instructions. Mail server was
>> running for last 3 years.
>> Week back I switched ISP, I didn't change the setup.
>>
>> I think SPF and reverse records are updated through dyndns (I may not be
>> correct though, let me know how to look for SPF/reverse record)
>>
>> After looking through /var/log/maillog
>>
>> I've error like:
>>
>> smtp[3002]: certificate verification failed
>>
>> Regards
>>
>> On Tue, Dec 15, 2015 at 10:29 PM, Sruli Saurymper <sruli at saurymper.com
>> <mailto:sruli at saurymper.com>> wrote:
>>
>>     What problems on outgoing? are they bouncing? did you update SPF,
>>     reverse record?
>>
>>
>>     On 16/12/15 05:47, protik wrote:
>>
>>         Do I need to follow something specific?
>>         Outgoing mails seem to have problem, when moved to new IP
>>
>>         Thanks
>>
>>
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