- Plesk 11.x for Linux
- Plesk 12.0 for Linux
An attempt to send a message via Webmail fails with an error:
There was an error sending your message: sendmail
It is also logged to the
may have the following error:
postfix/sendmail: fatal: Recipient addresses must be specified on the command line or via the -t option
has an additional
directive that affects Horde webmail functionality.
Make sure that the
functions are not disabled, i.e., they are not in listed in the
# grep -i disable_functions /etc/php.ini
To check if the
Comment out "disable_functions" directive in the
# service httpd restart
Try to send email again.
If it works, then exclude the functions from the
list one by one, restart Apache, and check email sending through Webmail.Once the function that should not be disabled is found, exclude it from the disabled functions list.
Other PHP functions, if disabled, can also affect Horde webmail functionality.
Please use the same "exclusion method" to determine what function causes the issue. Once it is found, exclude it from the disabled functions list.