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Defect #15985

closed

Email address with non-ASCII character causes delivery error

Added by Marc D. over 10 years ago. Updated 5 months ago.

Status:
Closed
Priority:
Low
Assignee:
-
Category:
Email notifications
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:
Resolution:
Fixed
Affected version:

Description

I know that e-mailadresses with "ß" are invalid in general, but you can enter them in redmine. That causes that any notification to a ticket which are related to the person with the "ß" mail couldnt be send.

The "to:" mailadress in the maillog is something like "to=<=?UTF-8?B?bWFyY2VsLnBsYcOfQGJ1cmctZ21iaC5kZQ==?=>" for everyone who is related.
-> No one will be notified.


Files


Related issues

Related to Redmine - Defect #28878: Email does not support Russian-language domains.Closed

Actions
Related to Redmine - Feature #29208: Support email addresses with IDN (internationalized domain names) in user accountsClosedGo MAEDA

Actions
Actions #1

Updated by Go MAEDA over 7 years ago

  • Subject changed from E-Mail with ß causes error to Email address with non-ASCII character causes delivery error

Non-ASCII characters cannot be used in an email address.
This issue can be fixed by the following patch.

Index: app/models/email_address.rb
===================================================================
--- app/models/email_address.rb    (revision 16179)
+++ app/models/email_address.rb    (working copy)
@@ -26,7 +26,7 @@
   after_destroy :destroy_tokens, :deliver_security_notification_destroy

   validates_presence_of :address
-  validates_format_of :address, :with => /\A([^@\s]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i, :allow_blank => true
+  validates_format_of :address, :with => /\A([[:ascii:]&&[^@\s]]+)@((?:[-a-z0-9]+\.)+[a-z]{2,})\z/i, :allow_blank => true
   validates_length_of :address, :maximum => User::MAIL_LENGTH_LIMIT, :allow_nil => true
   validates_uniqueness_of :address, :case_sensitive => false,
     :if => Proc.new {|email| email.address_changed? && email.address.present?}
Actions #2

Updated by Go MAEDA over 7 years ago

  • Target version set to 3.3.3
Actions #3

Updated by Jean-Philippe Lang over 7 years ago

  • Target version deleted (3.3.3)

Go MAEDA wrote:

Non-ASCII characters cannot be used in an email address.

Yes, they can. More and more clients and server support that.
We cannot simply disallow them in Redmine.

Actions #4

Updated by Go MAEDA over 7 years ago

Jean-Philippe Lang wrote:

Go MAEDA wrote:

Non-ASCII characters cannot be used in an email address.

Yes, they can. More and more clients and server support that.
We cannot simply disallow them in Redmine.

Thanks for the advice. Now I understand that.

https://en.wikipedia.org/wiki/International_email#Email_addresses
https://tools.ietf.org/html/rfc6530

Actions #5

Updated by Go MAEDA about 6 years ago

  • Related to Defect #28878: Email does not support Russian-language domains. added
Actions #6

Updated by Go MAEDA almost 6 years ago

  • Related to Feature #29208: Support email addresses with IDN (internationalized domain names) in user accounts added
Actions #7

Updated by Go MAEDA 5 months ago

Redmine now supports internationalized domain names as of r22667.

Suppose you mistakenly enter user@straße.example instead of user@strasse.example as your email address. In that case, Redmine converts the email address to its ASCII representation user@xn--strae-oqa.example after clicking the "Save" button and displays the converted one on the screen. Therefore you will immediately notice there is some "problem" with the email address you entered.

1. Entering email address contains a non-ASCII character

2. The ASCII representation of the email address is displayed after saving

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