To add some additional information regarding what we are trying to achieve:
- An email server as a docker container. Prefer EXIM however Postfix would
work
- A POP3/IMAP server as a docker container
The containers will be deployed to a kubernetes cluster on GCP. We also
want DKIM and all the verification to work perfectly. This is for my own
company, security is a must :)
Can anyone please help guide in the right direction?
Kind Regards,
Terrance
On Sat, Jan 29, 2022 at 1:55 PM Terrance Devor <ter.devor@???> wrote:
> Thank You Byung-Hee! We are looking to have the same email server setup on
> GCP as you accomplished. A couple of questions:
>
> Any reasons why you chose Postfix?
> What about inbound (ie, POP3 and IMAP)?
>
> Kind Regards,
>
> Terracne
>
> On Tue, Jan 4, 2022 at 8:42 AM Byung-Hee HWANG via Exim-users <
> exim-users@???> wrote:
>
>> Terrance Devor via Exim-users <exim-users@???> writes:
>>
>> > I have read that google blocks port 25 and 465. We absolutely need to
>> run
>> > our email own email servers on GCP using our Kubernetes cluster. Did
>> anyone
>> > succeed in this?
>>
>> Currently i am running Postfix on GCP, Ubuntu 18.04 LTS as Google
>> Computer Engine. You can open INGRESS (port 25 inbond). However you
>> cannot open ENGRESS (port 25 outbond). So you should use outside SMTP
>> for sending. In my experience, Mailgun and Amazon SES are good for
>> sending. They offer special ports such as 2525, 2587 for relaying.
>>
>> Sicerely, Byung-Hee
>>
>>
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>
