Voicemail to email - how to use ipv4?

FreePBX Installation / Upgrade
1

Hello,

I am trying to setup the voicemail to email functionality on my Sangoma appliance based Freepbx. I have a known working Office365 account.
When I try and test this functionality the pbx tries to connect to smtp.office365.com using ipv6 - how do I tell it to use ipv4 as the ISP serving the office in question doesn’t support ipv6 just yet.

Thanks

Gavin

2

A bit late, but here:

open:
/etc/postfix/main.cf

comment out:
inet_interfaces: all

add:
inet_protocol: ipv4

Taken from here:
https://codinfox.github.io/dev/2015/04/08/postfix-cannot-start/