problems sending to certain domains all of a sudden

Discussions on webmail and the Professional version.
Posts: 1071
Joined: Tue Mar 02, 2004 7:33 pm
Location: Atlanta, GA, USA

Post by paarlberg » Mon Dec 12, 2005 6:38 am

I received this from Yahoo..

Thank you for contacting Yahoo! Customer Care.

We are currently unable to offer a feedback loop however, we are
actively developing one and expect it to be ready within the first half
of next year. We are continually working to improve our services and
your input helps us identify ways to continue enhancing our Yahoo! Mail

Our feedback loop system will be based on DomainKeys, rather than the
source IP address -- so for things to work correctly you will have to be
signing messages with DomainKeys in order to get feedback on those

Keep an eye on

for more info & a sign-up form once the system is available.

If emails sent by your servers are having delivery problems or being
delivered to the Yahoo! Bulk Mail folder and you would like to prevent
this from occurring, please complete the following application below to
help us determine where your email is most appropriately delivered. We
ask that you provide responsive, complete and truthful information.
Please note that by submitting this information to Yahoo!, you agree to
adhere to the Yahoo! Terms of Service (TOS). You may review these Terms
by visiting:

If you do not have an IP address solely dedicated for your email, please
we recommend that you forward this questionnaire to a representative of
your mail service provider, as we will need to evaluate their overall
mailing practices and policies rather than yours.

In addition, this application process is not a guarantee for delivery to
our users' Inbox. Individual user filtering preferences may override
system-wide settings. If Yahoo! is made aware of any indication that
your answers are false or inaccurate, or that your mailing practices
have changed, we may, in our sole discretion, take appropriate action,
including but not limited to directing email to the Bulk Mail folder and
refusing to evaluate any future questionnaire submissions for a period
of six months.

Please know if your application is missing any answers or if your mail
servers or IP addresses are configured incorrectly, it may prolong the
application process.

To begin this application process, we would appreciate you taking the
time to provide us with the information requested below:

1. Do you rent, lease, buy or otherwise obtain email addresses from
companies, individuals, organizations, or websites (other than those you
own) that do not indicate the recipient will receive email from you or
your organization?

a. If yes, do you explicitly send an opt-in confirmation email to the
email addresses you have acquired?
i. If yes, please send a text-only example of this email.

b. If no, please explain your purpose for sending email to Yahoo!

2. How do you verify that the true owner of the email address you have
obtained has agreed or subscribed to receive your mailings?

3. Do you offer list management or email services for other companies
(i.e., as an ASP)? If so, please provide us with your standards for
accepting your clients' email lists.

4. Do you rent, lease, sell, or otherwise give email addresses to other
companies, individuals, organizations, or affiliates without providing
notice to the email users that they will be subscribed to the buyer's
specific email list?

5. Please indicate the information below pertaining to mailings.

a. How frequently do you send mail to Yahoo! users in a given month?

b. If you send email to lists of addresses, how many emails are sent
for the average mailing?

c. If you are an ASP, what has your average client mailing frequency
been over the past six months?

6. Please specify your policies pertaining to both soft (4xx) and hard
(5xx) SMTP response codes or bounce messages.

a. Do you remove email addresses from your distribution list if
emails to them bounce?

b. How many bounced emails are required before you consider an email
address to be inactive and discontinue communication?

i. After an email address reaches your bounce limit, how long
(i.e., minutes, hours, etc.) does it typically take to remove the email
address from your distribution list?

c. Are the any circumstances under which you ignore the standard
definitions of 4xx being temporary and 5xx being permanent, and instead
apply your own non-standard interpretation? If so, when/what/how?

7. If a user requests removal from your distribution list, how long
(i.e., minutes, hours, etc.) does it typically take to remove the email
When user clicks an unsubscribe link (if applicable):
When user requests removal:

8. If a user is removed from your distribution list, what happens to
that email address in your database?

9. Please copy and paste a text-only example of your most recent mailing
INCLUDING full Internet headers, preferably one that was delivered to
the Bulk Mail folder. Please do not send the example as an attachment
as we will be unable to access it.

Within a Yahoo! Mail account, you can display this information by
clicking the "Full Headers" link located within the message in the upper
right-hand corner.

10. Please provide all of the ACTIVE email IP address(es) and domain
names you are currently using to send your mailings including notes with
regards to dedicated or shared status for each. We do request email
administrators to describe which of their clients corresponds to each IP
address. Please submit this information in the following format:

IP Address:
Mail Server Domain Name:
Notes: dedicated IP, shared IP, shared domain/list server

At this time we can only consider active and correctly configured mail
servers/IPs for possible addition to the whitelist.

11. Are these IP addresses dedicated solely for your company's mailings?
If not, please specify which IP addresses of your email servers that are
used only by your organization. Please use the following format:

IP Address:
Mail Server Domain Name:
Notes: billing, employee newsletter, company in-house information

12. Are you planning on utilizing DomainKeys
( to authenticate your mailings?
If so, when do you plan to fully implement and use DomainKeys?

13. Please provide the "From" address(es) in the mailings you send.

14. Please provide the URL of your web site.

15. Please provide the URL of your Privacy Policy and other relevant

16. Please provide the URL of the site at which users opt-in to receive
your mailings.

17. Finally, please provide the following contact information:
Company name:
Postal Address
Zip Code:
Key contacts
Email address:
Phone number:
Contact email address for important service announcements:

Once you have completed your application, please send your answers to:

IMPORTANT REMINDER: Due to security purposes, our custom messaging
system is unable to access attachments. As such, as opposed to sending
an attachment, we will need you to copy and paste a text-only copy of
any sample email that you are providing us.

Thank you again for contacting Yahoo! Customer Care.


Yahoo! Customer Care - Mail Investigations

Posts: 6
Joined: Wed Nov 30, 2005 3:12 pm

Post by baz_ni » Wed Dec 14, 2005 10:49 am

Problem sending external mail again yesterday, stopped the smtp service and restarted, mail sent ok... Checked the queues inbound and found again about 20+ messages with nothing in them. I deleted them and everything is running ok again.. When I try to delete them, I get an error stating that they are in use, I have to stop all services and then delete them. Could it be a problem with the filtering?


Posts: 27
Joined: Thu Oct 20, 2005 8:59 pm

Post by lschafroth » Wed Dec 14, 2005 9:11 pm

I solved most of my problems by using these two sites:


I found some DNS records that were nto configured properly and it resolved some of our mail delivery issues. I'll keep an eye on it and see if all the issues go away.


Posts: 7
Joined: Wed Jun 18, 2003 3:25 am

Yahoo Mail Postmasters Help

Post by hsinvst » Wed Jan 11, 2006 3:29 am

Go to this link for postmasters having problems sending to Yahoo


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