https://community.teamviewer.com/English/discussion/140950/service-camp-own-mail-server-setup-office-365-account-fail
service camp Own mail server setup office 365 account fail - TeamViewer Community
Integrate Own Mail Server cannot setup with office 365 account, all the setting already enable the pop , imap.
mail server setupservice camp
https://lists.centos.org/hyperkitty/list/discuss@lists.centos.org/thread/KGCRM3CX7QNZAJSZL3CWFAGHESRKF6WH/
Pointer to simple mail server setup? - Discuss - lists.centos.org
mail server setuppointersimplediscusslists