Users cannot setup any of the email features using an MS Office 365 account, because the system doesn't support TLS/ STARTTLS encryption protocol. The TLS 1.2 protocol has become mandatory (announced by Microsoft in December 2017 with the implementation date on March 1, 2018) as MS is phasing out support for previous protocols TLS1.0, TLS 1.1.
https://support.microsoft.com/en-us/help/4057306/preparing-for-tls-1-2-in-office-365
Hostname | outlook.office365.com
Port Number | 995
Mail Box Protocol | — Select protocol: IMAP + SSL ; IMAP ; POP + SSL ; POP
Expected behavior: Normally, an POP + TLS should also exist
Actual behavior: There are no 'TLS' options
server {
listen 80;
server_name osticket.hakase-labs.com;
root /var/www/osticket/upload;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
index index.php;
client_max_body_size 2000M;
client_body_buffer_size 100M;
client_header_buffer_size 10M;
large_client_header_buffers 2 10M;
client_body_timeout 12;
client_header_timeout 12;
keepalive_timeout 15;
send_timeout 10;
gzip on;
gzip_comp_level 2;
gzip_min_length 1000;
gzip_proxied expired no-cache no-store private auth;
gzip_types text/plain application/x-javascript text/xml text/css application/xml;
set $path_info "";
location ~ /include {
deny all;
return 403;
}
if ($request_uri ~ "^/api(/[^\?]+)") {
set $path_info $1;
}
location ~ ^/api/(?:tickets|tasks).*$ {
try_files $uri $uri/ /api/http.php?$query_string;
}
if ($request_uri ~ "^/scp/.*\.php(/[^\?]+)") {
set $path_info $1;
}
location ~ ^/scp/ajax.php/.*$ {
try_files $uri $uri/ /scp/ajax.php?$query_string;
}
location / {
try_files $uri $uri/ index.php;
}
location ~ \.php$ {
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php7.0-fpm.sock;
fastcgi_param PATH_INFO $path_info;
}
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