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I have successfully installed postfix, dovecot and roundcube. Here my clients can come and create their subdomain like a.mydomain.com, b.mydomain.com, c.someotherdomain.com, d.onemoredomain.com
I dont want a.mydomain.com user to send email to b.mydomain.com or any other domain. I want any email from any domain to be sent to same domain and RESTRICT to send email to any outside domain.
Please help me to create rules as any other method didn't work. Thanks in advance.
rkumaram
Posted 2019-06-25T08:19:39.823
Reputation: 1