PHPMailer not working on Bitnami Lightsail instance running Wordpress

Question

I'm running Wordpress on a Bitnami Lightsail instance.

I've opened all TCP & UDP ports (for troubleshooting purposes) and am receiving errors when trying to use PHPMailer with any mail plugin.

Any help appreciated. I've pasted my error log below:

```
Versions:
WordPress: 6.3.1
WordPress MS: No
PHP: 8.2.10
WP Mail SMTP: 3.9.0

Params:
Mailer: mail
Constants: No

Server:
PHP.mail(): Yes

PHPMailer Debug:
Could not instantiate mail function.

Debug:
Email Source: WP Mail SMTP
Mailer: Default (none)
PHPMailer was able to connect to SMTP server but failed while trying to send an email.
```

Rodney Lester · Accepted Answer

See [SMTP (port 25) outgoing connections blocked](https://repost.aws/questions/QUhOiYfU2ESzyjHNFLdih5lQ/smtp-port-25-outgoing-connections-blocked). TLDR; You need to either get approval to send mail from an instance or use Simple Email Service.

PHPMailer not working on Bitnami Lightsail instance running Wordpress

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