Currently all bounce messages have the sender name of MAILER-DAEMON@aol.com.
With the changes for outbound mail, ALL bounce messages will have the sender name of MAILER-DAEMON@sender-domain. For example, an AIM account sending invalid recipients to the internet, will receive a bounce from MAILER-DAEMON@aim.com, and a switched.com member from MAILER-DAEMON@switched.com, UK member from MAILER-DAEMON@aol.co.uk.
With the changes for inbound mail, ALL bounce messages (mostly due to user-defined spam settings) will have the sender name of MAILER-DAEMON@recipient –domain. For example, a member of yahoo sending to an AIM account with a user-defined block, would receive a bounce message from MAILER-DAEMON@aim.com.
This may result in multiple bounce messages generated for a single piece of email being returned to the same sender. One bounce message is generated for each unique recipient domain.
For example, a member of yahoo sending a message with four recipients, two AIM accounts and two switched.com accounts (all with user-defined blocks), would receive ONE bounce message from MAILER-DAEMON@aim.com and ONE from MAILER-DAEMON@switched.com.
These changes will be installed into production over the next couple of weeks.
Christine
Manager, Postmaster Team
Reader Comments (Page 1 of 2)
1. Thanks for the update, Christine.
However, I'm confused about the last part.
"For example, a member of yahoo sending a message with four recipients, two AIM accounts and two switched.com accounts (all with user-defined blocks), would receive ONE bounce message from MAILER-DAEMON@aim.com and ONE from MAILER-DAEMON@switched.com."
Does this mean there won't be a 1:1 mapping of unsuccessful mail handoff and an associated NDR for each message? How will that work? Are you aggregating recipients in the bounce strings? Seems like you'd still need 4 bounce messages to correlate to the 4 delivery attempts so the MTA knows what to do about the other 2 recipients.
-Chris
Posted at 9:57AM on Jul 22nd 2009 by Chris Wheeler
2. Chris, you're thinking about non-delivery notifications (5xx replies) during the SMTP conversation. Christine is talking about non-delivery replies, which occur after the SMTP conversation is closed with a 250 reply.
-J.D. Falk, Return Path
Posted at 12:42PM on Jul 22nd 2009 by jdfalk
3. Ack! I swapped terms: NDR is during the initial SMTP conversation, NDN is after.
What's normally called a "bounce message" is the latter.
Posted at 2:51PM on Jul 22nd 2009 by jdfalk
4. I know that feeback loop complaints are sent for AOL.com, AIM.com, and netscape.net. Are there any other domains that report spam complaints through the AOL FBL? If so what are they?
Thanks,
Gil
Posted at 2:17PM on Jul 24th 2009 by Gil Ugiansky
5. @Chris -- did JD answer your question?
@Gil -- that's a very good question. We send and receive mail for a large number of domains. We will look into publishing a list on the website.
Posted at 2:18PM on Jul 24th 2009 by Christine Borgia
6. Could you email that list to me?
Thanks, Gil
Posted at 2:51PM on Jul 24th 2009 by Gil Ugiansky
7. @Gil, we have not put the list together. We'll do so and post it to the blog. Our users have @aol.com, @cs.com, @compuserve.com, @netscape.net, @aim.com, plus all of the email domains available on http://tunome.com/, and some people host the mail for their personal domains on AOL. In other words, we send FBLs for a large number of domains.
Posted at 3:01PM on Jul 24th 2009 by Christine Borgia
8. Hi, this morning I tried to send an email, and right after I received an email telling me the message had not been delivered for several reasons that were stated and that I don't understand from a MAILER-DAEMON@aol.com. After receiving this email I have tried several times to send emails and I keep getting this message :
The message was not sent because of an error.
The message cannot be sent.
If this problem continues, please see our technical support information.
This has been going on for more than an hour now....How can I fix this ?
Thanks
Posted at 3:03PM on Jul 24th 2009 by John
9. Thanks for Domain info. Another question: We're getting AOL.com bounce messages that say: rejecting based on: 'TOO MANY RECIPIENTS FOR THIS CONNECTION'
Can you tell me how many you recommend for new IPs
Thanks, Gil
Posted at 6:51PM on Jul 24th 2009 by Gil Ugiansky
10. @JD Thanks! You mean this only applies to asynchronous/remote bounces? I guess a MAILER-DAEMON@ can contact you is through an email, hence an NDN?
That makes a heck of a lot more sense. I was starting to wonder if email had been redesigned on me there for a minute.
@Christine I believe so. There will be no change in actual synchronous bounces at the SMTP conversation level, right? Thanks for keeping up with this and responding!
Posted at 6:14PM on Jul 24th 2009 by Chris Wheeler
11. @John, open a support request on postmaster.aol.com. Include the full mailer-daemon error that you were given.
@Gil, the max number of recipients allowed per message is 100.
Posted at 6:52PM on Jul 24th 2009 by Christine Borgia
12. Does this mean we can no longer use AOL email except to aol client? I have tried to email friends and have been utterly unable. I don't understand....I have tried to forward email to others and again have been thwarted. What the heck use is AOL email if you can't use it.
Posted at 6:24PM on Jul 25th 2009 by Janet McLaughlin
13. @Janet, we want you to be able to email everyone you know! Please open a support request at http://postmaster.aol.com/waters/other_issues_form.html. Let us know exactly what happens when you try to send email -- who are you emailing, what error are you getting. If you're getting a bounce email, copy the entire thing into your request. Also, if you have the exact date/time you tried to send an emai land it was blocked, that is very useful. Thanks.
Posted at 9:24PM on Jul 24th 2009 by Christine Borgia
14. We are getting mailer daemon back on all emails going to a specific company looks like a RFC822 and cannot find info anywhere on this how can it be corrected
Posted at 10:58AM on Jul 27th 2009 by Tina M
15. @Tina, open a support request at http://postmaster.aol.com/waters/other_issues_form.html and we'll try to help you. Please include what email address you are sending from, what email address you are sending to, and the entire bounce/error message you receive.
Posted at 1:47PM on Jul 28th 2009 by Christine Borgia
16. http://crappycrappyservice.blogspot.com/
Posted at 1:11PM on Jul 29th 2009 by Shawn Neal
17. @Shawn Neal: I'm sorry to hear that you had such trouble reaching us. To make it easier for people to find us and request support, we include a URL linking you directly to our support website in every bounced email. Each of your bounced/undeliverable emails should have had an URL like this in it http://postmaster.aol.com/errors/421dynt1.html, where there is also a link to open a support request.
Posted at 1:52PM on Jul 29th 2009 by Christine Borgia
18. It is extremely difficult to report problems or find answers to questions not on the faq pages. For the past couple weeks, people with AOL mail accounts have been unable to send mail to accounts on any of three domains I have hosted with Bluehost. The bounce message contains no hint about how or where to report this problem. I have written emails to postmaster@aol.com for a week with no response.
Posted at 1:58PM on Aug 19th 2009 by Steve Judd
19. @Steve Judd, Please submit your request at http://postmaster.aol.com/waters/other_issues_form.html. Give us the entire bounce/error message you are receiving, and let us know what email address the messages are to and from.
Posted at 2:00PM on Aug 19th 2009 by Christine Borgia
20. WHY CANT YOU JUST SAY THE ADDRESS WE SEND BUT YOU WITE ALL KINDS OFF NONSENSE WHICH WE DONT CARE ABOUT ALL YOU HAVE TO SAY YOU WE ARE SENDING IT TO THANK YOU STANLEY
Posted at 1:24AM on Aug 23rd 2009 by STANLEY