Mails not working, `/etc/msmtprc: Permission denied`

Troubleshooting

• I have attempted to troubleshoot this already

Describe the bug

Sending emails does not work. Fails with an error PHP Mailer - Could not instantiate mail function..

10updocker logs shows:

phpfpm_1     | ln: failed to create symbolic link '/etc/php.d/15-xdebug.ini': No such file or directory
phpfpm_1     | Added $DOCKER_INTERNAL_HOST to hosts /etc/hosts
phpfpm_1     | /entrypoint.sh: line 3: /etc/msmtprc: Permission denied
phpfpm_1     | /entrypoint.sh: line 10: /etc/php-fpm.d/www.conf: Permission denied
phpfpm_1     | /entrypoint.sh: line 28: /etc/php/7.4/mods-available/newrelic.ini: Permission denied
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: [pool www] 'user' directive is ignored when FPM is not running as root
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: [pool www] 'user' directive is ignored when FPM is not running as root
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: [pool www] 'group' directive is ignored when FPM is not running as root
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: [pool www] 'group' directive is ignored when FPM is not running as root
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: fpm is running, pid 1
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: ready to handle connections
phpfpm_1     | [03-Oct-2022 18:54:07] NOTICE: systemd monitor disabled
phpfpm_1     | [03-Oct-2022 18:54:09] WARNING: [pool www] child 23 said into stderr: "NOTICE: PHP message: Xdebug: [Step Debug] Could not connect to debugging client. Tried: host.docker.internal:9003 (through xdebug.client_host/xdebug.client_port) :-("
⋮
phpfpm_1     | [03-Oct-2022 18:54:18] WARNING: [pool www] child 23 said into stderr: "sendmail: account default not found in /etc/msmtprc"

MailCatcher is completely empty

Steps to Reproduce

1. 10updocker upgrade and 10updocker create with all the defaults
2. Send any email from the WordPress instance
3. check the logs
4. check the MailCatcher http://localhost:1080/

Screenshots, screen recording, code snippet

• Device: Asus UX501
• OS: Ubuntu 22.04
• Docker version 20.10.12, build 20.10.12-0ubuntu4
• docker-compose version 1.28.4, build cabd5cfb
• msmtop version:

  $ 10updocker shell
  tomalec@c5110398ac34:/var/www/html$ sendmail --version
  msmtp version 1.8.16
  

Environment information

No response

Code of Conduct

• I agree to follow this project’s Code of Conduct

[kmgalanakis]

@tomalec OK, I figured this out.

The docker image used for the phpfpm container is the 10up/wp-php-fpm. This image has an entrypoint.sh file, which I’m assuming is executed every time the instance boots.

If you check this file closely, you will notice that very early on this file, on line 3, the script attempts to write to the /etc/msmtprc file, which generates that error mentioned in your (and my) logs.

phpfpm_1 | /entrypoint.sh: line 3: /etc/msmtprc: Permission denied

So, apparently, the script cannot write to the /etc/msmtprc file due to wrong permissions.

Following your suggestion, I had to edit .containers/php-fpm and add RUN chmod a+x /etc/msmtprc. So to give a full walkaround I did the following:

1. cd to the env folder
2. Edit .containers/php-fpm and add RUN chmod a+x /etc/msmtprc
3. Run docker-compose build

[jg314]

If I run cat /etc/msmtprc in the WSL 2 terminal I get a No such file or directory error. Is that what you were running into before you added RUN chmod a+x /etc/msmtprc to the php-fm file?