Plesk mail notifications sent to the external e-mail address are not sent.
One of the following errors may be shown:
Error: Error sending the report: Sender address is not valid for your login. Check your email program settings.
05536E3B2E4D59.MAI 1268 127.0.0.1 MAIL MAIL FROM:<firstname.lastname@example.org> 250 Requested mail action okay, completed 43 31
SMTP-IN 7F87DB65F5EA4569B105536E3B2E4D59.MAI 1268 127.0.0.1 RCPT RCPT TO:<email@example.com>
503 This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server.
235 Failed to meet all relay criteria. Attempt to relay to [SMTP:firstname.lastname@example.org] was denied for requesting IP Address 127.0.0.1
in Event Viewer:
at Unable to execute event(runtask::start line 210)
Execute file name: C:\\Program Files (x86)\\Parallels\\Plesk\\admin\\bin\\runtask.exe
Unable to send e-mail notification: Could not read from <domainname>
Authenticated senders must use valid sender address option is enabled in MailEnable. If it is selected, users with authentication to send email must configure their email client with a valid email address that is assigned to the mailbox they are using to send on. This option is useful to force clients to use a legitimate email address, thereby reducing the possibility of spam.
Allow Relay For Privileged IP Ranges rights have not been set or
127.0.0.1is not listed in the range of IP addresses.
Make sure that IP address of the external SMTP server is added in the
Disable Authenticated senders must use valid sender address feature in MailEnable Administration console > Servers > Localhost > Connectors > SMTP Properties > Security tab .
Enable Allow Relay For Privileged IP Ranges and ensure, that
127.0.0.1is listed in the Privileged IPs list.