Dear Sir,
We have installed roundcube mail client on our server and it was working
fine earlier.Now we can't send mail to other mail servers like
gmail,yahoo,etc...
While sending mail other than our mail server we are getting error
message
SMTP Error (550): Failed to add recipient "[email protected]"
(Please turn on SMTP Authentication in your mail client, or login to the
IMAP/POP3 server before sending your message.
(email.origamitechnologies.com) [192.254.190.128]:41201 is not permitted
to relay through this server without authentication.)
How can we resolve this issue.Please help us to resolve this issue
Mobin TM
Origami Technologies
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