Ich hab das selbe Problem.

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

host mxbw-bluewin-ch.hdb-cs04.ellb.ch [195.186.227.50]
SMTP error from remote mail server after end of data:
554 5.2.0 sc976: Rejected due to policy reasons - https://support.bluewin.ch/provider/bounce/aXA9MTk0LjE5MS4yNC4yMjA7Yz1zYzk3NjtpZD1RN0czbDZzcnZNTnFRUTdHM2xLOUlVO3RzPTE2MTY4NDUwNTU=
Reporting-MTA: dns; node01.servicehoster.ch
…

PowerMac

The form is for mass email senders. This is how I understand the note on the contact form.

Gerip55

Yes, at the moment test emails that I send with my domain without any attachments or links are being rejected, even to my own bluewin email account.

I have the same problem. When I send an email to my Bluewin Mail, I get the same message. My domain is hosted by Hoststar.

Well, it works for me, I just tried it for the second time.

But it’s possible that the spam filter senses the full moon…

@PowerMac

I contacted Hoststar because all 15 domain email accounts are blocked.

The club domain emails don’t work either and they have nothing to do with my domain, including Hoststar.

@WalterB

Thank you for contacting Hoststar.

This week Hoststar made a move to a different server. I received an email, I don’t know if that’s the problem.

from my Bluewin email address to Hoststar. The problem is only the other way round.

I have the same problem. In the morning it was still possible.

@Thommy

The move was about ¾ years ago for me and also for the other users I know, they also had to adapt the port and that worked.

Let’s wait and see what kind of answer comes, there was already a problem with Bluewin which was then fixed.

N.b. Receiving works correctly from Bluewin on Hoststar.

I have the same problem via Lilienthal server. All emails to bluewin addresses are returned.

I also send via Metanet. All bluewin addresses will be rejected.

I’m also on Metanet - have the same problem! Bluewin would do better to do something against the real spam senders 😉

Since Saturday March 27th, 2021 I have no longer been able to send emails from my office mail account via Exchange Server via Outlook to my private Bluewin address. It works the other way around. My wife has the same problem from your business to her private Bluewin address.

Message delivery failed to the following recipients or groups:
*Email placeholder*
There is a problem with the recipient’s mailbox. Try sending the message again. If the problem persists, contact your email administrator.
The following organization rejected your message: mxbw-bluewin-ch.hdb-cs04.ellb.ch.

@Roman67

It’s best to contact Swisscom as there are some who are currently having a problem, see above.

[https://www.swisscom.ch/de/privatkunden/hilfe/kontakt-b.html?adobe\_mc\_sdid=SDID%3D005A8C4 40AE5A0AE-73C357BF093994D2%7CMCORGID%3DA174401053C92A7E0A490D4C%40AdobeOrg%7CTS%3D1616911741 ](https://www.swisscom.ch/de/privatkunden/hilfe/kontakt-b.html?adobe_mc_sdid=SDID%3D005A8C44 0AE5A0AE-73C357BF093994D2%7CMCORGID%3DA174401053C92A7E0A490D4C%40AdobeOrg%7CTS%3D1616911741)

I’m now curious to see when the problem will be fixed. It’s probably a problem on Swisscom’s part. My business email address is also rejected when I send an email to my Bluewin email address. Work for a government agency.

Seems to be working again with Hoststar accounts.

@Nackoyup87

Thanks for the feedback, I’ll try it later.

I have now tested it and it worked again from Hoststar to Bluewin

Emails from Metanet servers also work again.