Roundcube Community Forum
Miscellaneous => Roundcube Discussion => Topic started by: viariemail on April 09, 2021, 03:36:39 AM
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Hi,
I am facing issue sending emails, if use other machine in same network. please find the attached file.
See I have installed the Bitnami Roundcube in windows 2016 server, the same machine the email was sent successfully, but I have tried in different machine unable send email.
getting error : smtp error 554 connection to server failed.
How do I fix this issue? here with attached my configuration as well for your kind reference. please lookup and let me know.
I have tested the local users can send emails to my office 365 online exchange server user, working fine .
but how get email from my office 365 online exchange server user to my local roundcube email users? it's possible?
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Please find attached defaults.inc.php for your kind reference.
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I believe 554 means something went wrong during the SMTP transaction. You could enable smtp_debug and check that log for more info. Either way the error is coming from your SMTP server not from Roundcube.
If I had to guess I'd say its because you are trying to send emails from siva@localhost.com which is obviosuly not valid and probably you are trigging from spam protection on your smtp server.