Notifications HELO uses IP rather than FQDN
php: /system_advanced_notifications.php: Could not send the message to email@example.com -- Error: 504 5.5.2 <192.168.1.x>: Helo command rejected: need fully-qualified hostname
#1 Updated by Chris Buechler over 9 years ago
- Subject changed from Error when trying sending notification to Notifications HELO uses IP rather than FQDN
- Category changed from Web Interface to Notifications
- Priority changed from Normal to Very Low
That's a problem with your mail server, it's rejecting the connection.
If we can easily send the FQDN of the system in the HELO that would be preferable.
#3 Updated by Pierre POMES over 9 years ago
AFAIK (according to RFC) HELO should be a FQDN and should match DNS definition. So maybe we should add a new field for a custom HELO in the advanced setup pages ? By default, IP could be sent (as it is now) but if this field is used, it should be used for HELO.