Hey guys. I have some domains that I have split the addresses, some on Office365, and some locally in my mailserver. How do I configure my mailserver so it can send to the email addresses in O365. The emails are the same domain.
I have successfully configured O365 already, it can send emails from O365 to the emails in my mailserver. But if I try to send an email (via ROUDNCUBE/WEBMAIL) from my mailserver to an email located in O365, I get an error:
SMTP Errot (550): Failed to add recipient
"email-at-O365@domain.com" (5.1.1
<email-at-O365@domain.com>: Recipient address rejected:
User unknown in virtual mailbox table
I have configured MX record to point to office365 as well.
Also on a side note, if I want to send an email to any other domain, how can I configure it so that it will use the office365 as outbound? If I use POP I can set the outbound and use one of the email in the O365 to send the message. But I prefer to use the WEBMAIL/ROUNDCUBE, how can I accomplish the same?
Thank you