SMTP send: NOT OK(Failed to add recipient

[nmpg]

Hello.

Using the test in the web installer I always get a

Trying to send email...
SMTP send:  NOT OK(Failed to add recipient 'xxxx@xyz.com')

error.

I am able to receive emails (I tested with by sending an email from my gmail account to my server) but trying to send an email with sendmail (installed through postfix) from the command line succeeds, but the email never arrives..

Help please.

[JohnDoh]

Trying to send email...
SMTP send:  NOT OK(Failed to add recipient 'xxxx@xyz.com')

Often errors like that are because you need to configure SMTP authentication in Roundcube.

I am able to receive emails (I tested with by sending an email from my gmail account to my server) but trying to send an email with sendmail (installed through postfix) from the command line succeeds, but the email never arrives.

It was probably marked as spam

[nmpg]

fixed this by properly setting the HELO reply in postfix configuration.

Cheers