It seems you can’t unblock port 25, refer to
https://cloud.google.com/compute/docs/tutorials/sending-mail <
https://cloud.google.com/compute/docs/tutorials/sending-mail>
In such case, I advise to purchase low range VPS while I would recommend rather to just migrate away from GCP with higher spec VPS if needed, and notice there are hosting companies providing almost as elastic features as these cloud based providers and much more affordable in some conditions depending on your usage, or then setup EXIM as SMTP Relay server, and relay from the emails to the IMAP server over GCP, note you will have to open LMTP port in GCP so it can be accessed by the remote VPS server IP e.g. using following configuration in dovecot/conf.d/10-master.conf file from dovecot side.
service lmtp {
inet_listener lmtp {
address = 127.0.0.1 ::1 APPEND HERE SMTP RELAY SERVER IP ONLY
port = 3939
}
}
Zakaria.
> On 20 Feb 2022, at 09:15, Cyborg via Exim-users <exim-users@???> wrote:
>
> Am 20.02.22 um 01:05 schrieb Terrance Devor via Exim-users:
>> Hello Zakaria,
>>
>> I agree if port 25 is open it would work just fine, but how to get around
>> the fact that GCP block port 25?
>>
>
> ... using a different hoster ofcourse.
>
> best regards,
> Marius
>
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