Outgoing e-mails are no longer sent directly to the receiving mail server, but are re-routed via the SpamExperts cluster of Openprovider. If the e-mail is valid, it's forwarded to the final recipient. If it's spam, it is blocked at the cluster.
For new users the outgoing server that should be configured is 683.smtp.antispamcloud.com on port 587.
For users that still use the bundled solution of SpamExperts the following outgoing server applies:
outgoing.mail.registrar.eu on port 587.
Of course the sending server should authenticate itself to the cluster. Authentication can be done on 2 levels: as domain user or as IP user:
- Domain user
For every filter that is created, Openprovider automatically creates a user for outgoing e-mail. Use those data to authenticate at the SMTP server. Now your e-mail will be filtered.
- IP user
It is also possible to filter all e-mail from a certain server, for example your shared hosting server. Do this by creating an IP user: there is no need to log in with username and password to the SMTP server, as the cluster will accept all connections from the specified IP address. Please note that only a limited number of IP users is available and this number depends on your bundle size.