When we try to send emails through horde we get the following message: There was an error sending your message: unable to connect to smtp server localhost:25 So, I tried to telnet to localhost on 25 using ‘telnet localhost 25′, which returns: Trying 127.0.0.1… telnet: Unable to connect to remote host: Connection refused I ran nmap …
Tag Archive: Unable to connect to smtp server localhost:25 on plesk
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