Last modified: 2010-05-15 15:56:39 UTC

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Bug 6243 - Dot in user name prevents email through SMTP
Dot in user name prevents email through SMTP
Product: MediaWiki
Classification: Unclassified
User login and signup (Other open bugs)
PC Linux
: Normal normal (vote)
: ---
Assigned To: Brion Vibber
Depends on:
  Show dependency treegraph
Reported: 2006-06-08 19:11 UTC by Jennifer Parga
Modified: 2010-05-15 15:56 UTC (History)
1 user (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Description Jennifer Parga 2006-06-08 19:11:57 UTC
When a user is created that has a dot in the user name, such as jennifer.parga,
e-mails cannot be delivered through authenticated SMTP.  I was able to locate
several instances of this. 

1. On Special:Userlogin, when creating a new account, it is possible to create a
user name with a dot when submitting through the "Create account" button. 
However, when creating through the "by e-mail" button, the account is created in
the database, but the folowing error is displayed, and the e-mail is not delivered: 

Login error:
Error sending mail: Failed to send data [SMTP: Invalid response code received
from server (code: 554, response: Error: no valid recipients)]

2.  On Special:UserLogin, when entering the username of a previously created
user with a dot in the name, and submitting the form through the "e-mail
password" button, no e-mail is delivered and the following error is displayed:

Login error:
Error sending mail: Failed to send data [SMTP: Invalid response code received
from server (code: 554, response: Error: no valid recipients)]

3.  After logging in as a user with a dot in the username, go to
Special:Preferences and click on the "Confirm your email address" link.  Click
on the "Mail a confirmation code" button. No e-mail is delivered and the
following error is displayed: 

Could not send confirmation mail. Check address for invalid characters.

Testing method:
I created two accounts.  One had a user name with a dot, like jennifer.parga. 
The other had no dot, like jparga.  I used identical real name and e-mail
address information in both accounts.  I confirmed that my SMTP setup is
correct, since I was able to receive e-mail with the jparga account.  I also
tested several other pairs of accounts to ensure that there were no unprintable
characters in the user with the dot.
Comment 1 Brion Vibber 2006-06-08 20:04:49 UTC
Can you provide:
* The package name & version of the e-mail server
* The mail configuration you specified in LocalSettings.php if any
* any other information about this setup which sounds relevant

Comment 2 Jennifer Parga 2006-06-08 20:24:49 UTC
The mail server is running on gentoo linux with postfix and cyrus-sasl providing
authenticated SMTP.  The portage package of postfix that is installed is 2.2.5.
 The version of cyrus-sasl is 2.1.20.

Here's the mail configuration in LocalSettings.php.  Sorry, but I had to change
the actual values due to corporate privacy issues.  We host our mail and provide
SMTP through the address.  Our email addresses are
the addresses.

$wgEnableEmail = true;
$wgEnableUserEmail = true;

$wgEmergencyContact = "";
$wgPasswordSender       = "";

$wgSMTP = array(
        'host'          => "",
        'IDHost'        => "",
        'port'          => 25,
        'auth'          => true,
        'username'      => "login",
        'password'      => "secret"

The smtpd.conf for sasl is:

pwcheck_method: saslauthd
mech_list: plain login

The relevant section in main.cnf for postfix is:

smtpd_sasl_auth_enable = yes
smtpd_sasl_security_options = noanonymous
smtpd_sasl_local_domain =
broken_sasl_auth_clients = yes
smtpd_recipient_restrictions = permit_sasl_authenticated, reject_unauth_destination

Comment 3 Brion Vibber 2006-06-09 07:45:39 UTC
Confirmed, looking into it.
Comment 4 Brion Vibber 2006-06-09 08:26:27 UTC
Fixed on trunk in r14676. The changes to UserMailer.php should 
apply cleanly to the 1.6 release (follow the link to the change 

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