[swinog] Bluewin SMTP Policy

Dear Swinog members

Until now, we provided an authenticated smtp-server for our customers and a separate "open" smtp-server for customers with email-adresses from other providers. We would like to shut down the relaying server and have the customers use the smtp-servers from their mail-provider (gmx, gmail, bluewin etc.).

Now we found out that bluewin doesn't allow authenticated smtp-relay from users outside their ip-range, so all our customers with bluewin-mailadresses would have no smtp-server available.

I am sure that some of you had the same issue and would be interested how other (small) isp's have resolved this problem.

Thank you, Roger Schmid