DSL-customers of Swisscom AG (Bluewin)

Since the 8th of March 2010, Swisscom AG (Bluewin) has installed a mail filter (SMTP proxy) for all their DSL-customers.

This filter now also checks e-mail from our customers and free e-mail providers such as GMX, Google Mail and Hotmail if the e-mail is sent from a Swisscom connection. As a result of the introduction of the new spam filter, e-mail that is sent with SMTP authentication via port 25 can no longer be sent. In such cases, the port setting in the e-mail program must be changed from port 25 to port 587 (standard port for SMTP submission).

More information about your E-Mail settings can be found under Mail Domain FAQ.

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