My setup:
I'm using a Ubiquiti Udm-Pro for DHCP, a PiHole for DNS, and nginx for reverse proxy to all my servers including ns8 which has it's own VM on Proxmox.
Lets encrypt wild card cert for my domain through nginx working both locally and from the Internet for WebTop and nextcloud.
I added WebTop to my android phone as an exchange account and it says it is syncing email, contacts, and calendars. I can receive emails on my phone but not send. My phone says there is a webtop calendar on it but it desn’t sync. My understanding is webtop uses Z-push but it’s not clear to me if it is only for receiving or sending as well. Do I need imap for sending emails through NS8 from an android phone?
I had sogo on ns7 for years without issue, should I switch to that or round cube?