I have the same configure in Liferay 7.0 and is it's working. but the same configure I have moved on Liferay 7.3 shows me the below logs and it does not send an email.
2021-05-05 06:26:15.292 WARN [liferay/mail-3][MailMessageListener:135] Email test@liferay.com will be ignored because it is included in mail.send.blacklist
2021-05-05 06:26:15.295 WARN [liferay/mail-3][MailMessageListener:52] Skipping email because the sender is not specified
After LPS-84320 Liferay denies sending mail when sender is unconfigured in your installation.
Following default emails are consider as not valid unconfigured emails: noreply@liferay.com, test@liferay.com, noreply@domain.invalid, and test@domain.invalid
In order to avoid that warn traces and mail issues, you will have to configure a correct email in your portal-ext.properties:
admin.email.from.address=...your admin user email...
announcements.email.to.address=...your no-reply email...
For more information, see:
