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Email: Remove more characters from sender name (Z#23197264) (#5248)

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* Email: Remove more characters from sender name (Z#23197264)

* fix typo

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Co-authored-by: Richard Schreiber <schreiber@rami.io>
This commit is contained in:
Raphael Michel
2025-06-16 10:49:08 +02:00
committed by GitHub
parent dc198d4ab6
commit 70f71c8077
1 changed files with 7 additions and 0 deletions
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7
src/pretix/base/services/mail.py
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@@ -96,12 +96,19 @@ class SendMailException(Exception):
def clean_sender_name(sender_name: str) -> str:
# Even though we try to properly escape sender names, some characters seem to cause problems when the escaping
# fails due to some forwardings, etc.
# Emails with @ in their sender name are rejected by some mailservers (e.g. Microsoft) because it looks like
# a phishing attempt.
sender_name = sender_name.replace("@", " ")
# Emails with : in their sender name are treated by Microsoft like emails with no From header at all, leading
# to a higher spam likelihood.
sender_name = sender_name.replace(":", " ")
# Emails with , in their sender name look like multiple senders
sender_name = sender_name.replace(",", "")
# Emails with " in their sender name could be escaped, but somehow create issues in reality
sender_name = sender_name.replace("\"", "")
# Emails with excessively long sender names are rejected by some mailservers
if len(sender_name) > 75: