There are a few things you can try to fix the “SMTP 4.7.0 relay access denied” error:
- Make sure you’re using the correct username and password to authenticate with the SMTP server.
- Check that your email client is configured to use the correct SMTP server.
- Check that your email server is configured to allow relay access for your email client.
- If you’re using an email client on a mobile device, make sure that the mobile device is connected to a stable Wi-Fi or cellular network.
- If you’re using a web-based email client, try accessing it from a different browser or device.
- If you’re still experiencing issues, simply run these four commands in your terminal logged in as root:-
/etc/init.d/saslauthd restart /etc/init.d/postfix restart sudo service apache2 restart /etc/init.d/php7.4-fpm restart
i have an ubuntu 22.04 server and i installed iredmail server 1.6.2. my emial server is receiving emails but i cannot send any emails. i am getting an error for smtp 4.5.4 authentication error. can you give assistance on how to fix this?
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