I’m trying to send mails from Perl using the Mail::sender module. But I keep getting -4 return messages. The manual says -4 is service not available. What does that mean?
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I’m trying to send mails from Perl using the Mail::sender module. But I keep getting -4 return messages. The manual says -4 is service not available. What does that mean?
“Service not available” generally means that the server you are trying to contact is not online. In your case it is probably the SMTP-server that is offline.