lee mcdermott Posted October 12, 2020 Share Posted October 12, 2020 Hi, We were originally setup to use Google but have recently moved to Microsoft O365. I am trying to setup a new outbound routing rule but it fails with a send as denied error. Does anyone know what needs to be setup and where to get this working? The current setup is using smart Host to smtp-relay.gmail.com the new one I believe will be smtp.office365.com. What is required for step 2? if we are using smtp.office365.com Does hornbill have to send to a relay at our site for it to then direct to smtp.office365.com? If so where is this configured? for step 3 I assume we would already have this in place as it is currently working when using our original google mail account? Hornbill WIKI as below Create an outbound route in Hornbill and configure the necessary details (as shown in the image below). Configure a relay connector on your mail server (allowing relay from the appropriate origin IP stated below) - Configure any necessary firewall rules (allowing traffic from the appropriate origin IP) to allow communication from your Hornbill instance. Europe: - 87.117.243.10 OR 212.71.225.67 Any help or advice would be great thanks lee Link to comment Share on other sites More sharing options...
Martyn Houghton Posted October 12, 2020 Share Posted October 12, 2020 @lee mcdermott As far as I recall you can only have one outbound mail routing entry per domain, so you would just update your existing one for your domain pointing it to the Office365 server and your account credentials for you the same. Example below is from a screenshot of one of our domain connections to Office 365. Cheers Martyn Link to comment Share on other sites More sharing options...
lee mcdermott Posted October 12, 2020 Author Share Posted October 12, 2020 @Martyn Houghton cheers martyn. that may explain why its failing. I tried creating a new one just so I could test the connection worked before actually swapping over. Will just have to go for it and hope it works. thanks lee Link to comment Share on other sites More sharing options...
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