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troubleshoot postfix on ubuntu

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i have setup a new ubuntu 16 server as an email server. it is on cloud server linode

everything is standard ubuntu 16 lts bundle.

using my domain newly registered, should be clean.

has setup dns records for spf, dmarc and dkim.

however, email server seems not working properly.

1) opendkim-testkey record not found

the server is smtp only. no imap and pop required.

from shell mail out, the email address seen required to be an alias (instead of a system user) and show domain name (instead of @hostname.domainname).
About the recuiter
Member since Mar 14, 2020
Assam Bank
from Uttar Pradesh, India

Skills & Expertise Required

software development

Open for hiringApply before - Oct 11, 2024

Work from Anywhere

40 hrs / week

Hourly Type

Remote Job

$4.76

Cost

Offer to work on this project closes in 25 days!
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