Red Hat Bugzilla – Bug 174789
email confirmation reply to address dev-null
Last modified: 2007-04-18 13:34:56 EDT
Steps to Reproduce:
1. Go to https://rhn.redhat.com/rhn/users/ChangeEmail.do and change email then
send verification email
2. check mailbox
Actual Results:customer have never received a verification email.
Expected Results:can receive a verification email
Additional Information:This customer has never received verification email
because his ISP's email server has been filtering the keyword "dev-null". It is
impossible for him to change the rule of the ISO (juno.com). He has requested us
to change the email address "email@example.com".
Created attachment 121728 [details]
email from this customer
This information is from the customer who has juno.com email address.
To see Juno's dev-null block in action, try this:
$ telnet mx.lax.untd.com 25
When Juno's mail server responds, enter:
When Juno's mail server says, "pleased to meet you", enter:
MAIL FROM: <firstname.lastname@example.org>
As soon as you do this, Juno's mail server will close the connection and
you will see an "Access denied" error.
If you change "dev-null" in this example to something else (presumably
a real electronic mail address, but it doesn't have to be), you won't see
the error. You can continue to talk to Juno's mail server, eventually
enabling you to send a test message.
For more information about the use of telnet() to test a mail server in
this manner, see:
Email verification has been removed in RHN release 410.