Mail realy

we have a sister company who is using domino, due to some nature they are moving to office 365 we need a solution to relay emails for internal domains (ABC.com) to outside abc.com domain as we have internal mail router with them.(For example, sending emails to malim@abc.com if abc.com on Exchange domino mail server should be able to send email to Exchange).

if malim@xyz.com sends an internal email to abc.com, abc.com domino should relay the email or forward the email via Domino to abc.com office 365.

I have no idea it will work or not. but we need.

If Domino is the inbound smtp host, you can configure Domino to route mails to the o 365 using the smarthost funciton of Domino (Configuration Document, router tab > Basic > Local Internet domain smart host (define the o365 smarthost), leave the other field ('Smart host is used for all local internet domain recipients') to disabled), if domino does not find the user email in nab, it will touch the smarthost, if the smarthost says OK, the mail will be routed to the smarthost.

Hello Mubasher,

Along with above details , also you can perform below settings on Domino server end.

1: In person documents in Domino directory -> Mailsystem -> Other Internet mail.
2: Internet address -> MS365 address (yyy@abc.com)
3: save and close.

>> Now on SMTP Server, you need to perform below settings:

1: From the Domino Administrator, click the Configuration tab and expand the Messaging section.
2: Click Configurations.
3: Select the Configuration Settings document for the mail server or servers you want to administer.
4: click Edit Configuration.
5: Click the Router/SMTP - Basics tab.
6: Local Internet domain smart host: mention your O365 SMTP server IP address or host name.
7: Smart host is used for all local internet domain recipients: Enabled

>> Post above settings , please run the below commands to make the changes to be effected.
-> Load updall -R names.nsf
-> Tell router update config
-> Tell smtp update config