| Synopsis | |
|---|---|
| Begin | 2023-08-31 00:00:00 |
| End | 2023-09-14 16:34:00 |
| Affected | Users reading the Science/Radboud Newsletter on Science mailservers |
The Science newsletter is sent from an @ru.nl mail-account. Recently, the @ru.nl mailservice was changed by adding Exchange Online Protection (EOP). EOP is the successor for Radboud University to the Proofpoint e-mail security filter. EOP added a mail header line to the newsletter
List-Unsubscribe: https://c8ce19ec62454d21b73b7d5a25559d8f.svc.dynamics.com/t/lu/7...
which made the mail appear to be spam to the Science spamfilter SpamAssassin
1.1 URI_HEX URI: URI hostname has long hexadecimal sequence
When we noticed this, we fixed it by welcome listing (allowlisting/passlisting) the sender address communications-science@ru.nl on September 7, so this mail will never be falsely classified as spam. The Radboud Weekly newsletter had the same problem, so communicatie@ru.nl was also put on the welcome list on September 14.