Contact form

This form is intended only for bulk e-mail senders with an external domain. If you are the owner of a Bluewin.ch or Bluemail.ch address and have problems receiving or sending e-mails, please contact our customer support or call MyService.

Typical causes for problems when sending to Bluewin.ch or Bluemail.ch addresses are:

Use of sender IP addresses that have been misused in the past for sending spam
Use of recipient lists that contain non-existent addresses or spam traps

I confirm that I clean up my recipient list after each dispatch by correct bounce handling.

I confirm that you can only register in my recipient list via a double opt-in.

I confirm that, as stipulated by the EU-GDPR, I have the consent of all persons on my list of recipients to write to them by e-mail.

Select the type of problem:

Error Message

Contact details

Please enter the contact information of a technical contact person.

Company *

Last name *

First name *

E-Mail *

Phone *

Technical information

Public IP address of the mail server used *

If other addresses are affected, please also specify the network range in the comment field in the form 192.168.1.0/24 or 192.168.1.0-192.168.1.255.

Detailed description of the problem *

Declaration of consent

I agree that Swisscom may obtain further information regarding my support request and contact me in case of queries.