SOGo: can't send mail to external address
It's not possible to send mails to external addresses from SOGo web UI because the standard configuration uses port 25.
Possible fix: use the 587 submission port.
su -s '/bin/bash' -c 'defaults write SOGoSMTPServer 127.0.0.1:587' sogo
#2 Updated by Davide Principi over 6 years ago
The fix works.
Submission policy is configured by
postfix/SubmissionPolicyType prop. Any client in
/etc/postfix/submission_whitelist is allowed to bypass the policy.
localhost is there, by default.
10localhost -- localhost is allowed to bypass any authorization policy on submission and smtps TCP ports