RE: Yahoo! Mail/Sys Admin
Hello Everyone, It's been a while since I posted on this topic, and unfortunately I'm still having trouble with Yahoo deferrals. The links that were provided in this post worked, but after the forms were received by what I *think* is a human I still got a canned reply. I've tried replying with specific details about our problem, but is either answered with another generic reply or not at all. We are running Imall, and each domain has it's own IP address. Queue Timer and Tries before returning to sender are set to 30 minutes / 5 attempts. According to yahoo they do want you to attempt to resend if you get a 421 error. SPF is also set on a per-domain basis. I'm not sure what else to try. Does anyone have a better understanding of how Yahoo greylisting works? Thanks in advance! Justin Wilson
RE: Yahoo! Mail/Sys Admin
Hello, Try encorporating DomainKeys and applying for their feedback loop. http://help.yahoo.com/l/us/yahoo/mail/postmaster/forms_index.html I still have the same problem. Do you have any users who forward their email to their free @yahoo.com addresses from your server? Let me know if you get in touch with anyone :) -Ray From: [EMAIL PROTECTED] [EMAIL PROTECTED] On Behalf Of Justin Wilson [EMAIL PROTECTED] Sent: Wednesday, February 27, 2008 10:01 AM To: nanog@merit.edu Subject: RE: Yahoo! Mail/Sys Admin Hello Everyone, It's been a while since I posted on this topic, and unfortunately I'm still having trouble with Yahoo deferrals. The links that were provided in this post worked, but after the forms were received by what I *think* is a human I still got a canned reply. I've tried replying with specific details about our problem, but is either answered with another generic reply or not at all. We are running Imall, and each domain has it's own IP address. Queue Timer and Tries before returning to sender are set to 30 minutes / 5 attempts. According to yahoo they do want you to attempt to resend if you get a 421 error. SPF is also set on a per-domain basis. I'm not sure what else to try. Does anyone have a better understanding of how Yahoo greylisting works? Thanks in advance! Justin Wilson
RE: Yahoo! Mail/Sys Admin
Do you have any users who forward their email to their free @yahoo.com addresses from your server? That is likely the core of Justin's problem. We've found the way to minimize issues with yahoo mail are: 1. Clean up (ideally eliminate) the .forwarders on your end. This requires some effort on your part to educate your customers on how they are making their own lives more difficult with their behaviors. Always a tough task. 2. Scour your outbound queues of garbage be conservative in what you send 3. Agressive delivery retries, but early discards. In other words, we've noted the yahoo MX machines seem to operate their greylists independantly, so if one stops you the next one may not. Don't wait too long before you retry but dump mail after X hours if yahoo won't accept it. We've settled on 6 hours. Any longer and it just stays backed up forever. Let me know if you get in touch with anyone :) -Ray I agree with Ray on this one... I'll gladly buy a sushi lunch for the first real yahoo mail admin that ever appears in meatspace. I'm convinced that there are no real humans working mail ops there. --chuck
RE: Yahoo! Mail/Sys Admin
On Wed, 2008-02-27 at 14:03 -0800, chuck goolsbee wrote: I agree with Ray on this one... I'll gladly buy a sushi lunch for the first real yahoo mail admin that ever appears in meatspace. I'm convinced that there are no real humans working mail ops there. Wearing my academic IT hat for a moment, a Real Person! (tm) appeared on the HIED-EMAILADMIN list (hosted by nd.edu) earlier today, in answer to a lot of talk about how bad things have got with Yahoo recently. Out of politeness (since his email was obviously aimed at the list membership, which isn't NANOG) I have asked if he minds my forwarding it to other lists (well, I started with the [EMAIL PROTECTED] list, but I'll work from there). His title, not giving too much away, is: Anti-Abuse Product Manager Yahoo! Mail And you may, or may not, find his details in the list archives of the first list I mentioned above. I hope someone finds my not mentioning this fruitful :) Graeme
Re: Yahoo! Mail/Sys Admin
Justin Wilson wrote: We've been having trouble sending to [EMAIL PROTECTED] Getting the infamous 421 Message from (x.x.x.x) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html. I've actually had quite a bit of success with Yahoo. They're slow in replying so you have to know what to ask for. Ask them to add you to their white-list. Once the techs respond, they'll send you a long questionnaire about your mail servers, management practices, and company policies. Fill it out and mail it back to them. You'll be put on a two week monitoring period where they'll monitor e-mails coming from your servers. At the end of the two weeks, they'll approve you if you are legit. Just grin and bear it. Include all relevant information in *every* e-mail you send them. You'll most likely talk to someone new every time. If you're patient and craft well-worded e-mails, you should be on their white-list in about three or four weeks. I did exactly this and so far the yahoo mail servers haven't been too troublesome. They slow down the connections sometimes, but it usually goes through after an hour or two. -Chris
RE: Yahoo! Mail/Sys Admin
We've been having trouble sending to [EMAIL PROTECTED] Getting the infamous 421 Message from (x.x.x.x) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html. When I follow the referred link I get to http://help.yahoo.com/l/us/yahoo/mail/original/abuse/abuse-60.html, which then points you to this URL: http://help.yahoo.com/fast/help/us/mail/cgi_defer which is supposed to be a form. Sadly, that link loops you back to the Yahoo mail login page. Once you login your choices are quite limited and are for basic E-mail help. I've tried contacting yahoo through those links but I get a canned reply. It's been over a month of consistent deliverability issues to Yahoo and we're not one step closer to solving the problem. The one thing I did notice is when I modified SPF to include the IP address instead of the domain of the deferred MTA, E-mail would get through, but only for a few days then it was back to deferral. I've read the older posts on NANOG and various gripes about Yahoo greylisting on google but all the leads have come to a dead end. Does anyone know an interactive yahoo contact they could share with me? Thank you, Justin Wilson
RE: Yahoo! Mail/Sys Admin
You're right, they've shuffled things around. Try this form: http://help.yahoo.com/l/us/yahoo/mail/yahoomail/postmaster/defer.html Regards, Frank -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Justin Wilson Sent: Thursday, October 04, 2007 8:55 AM To: nanog@merit.edu Subject: RE: Yahoo! Mail/Sys Admin We've been having trouble sending to [EMAIL PROTECTED] Getting the infamous 421 Message from (x.x.x.x) temporarily deferred - 4.16.50. Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html. When I follow the referred link I get to http://help.yahoo.com/l/us/yahoo/mail/original/abuse/abuse-60.html, which then points you to this URL: http://help.yahoo.com/fast/help/us/mail/cgi_defer which is supposed to be a form. Sadly, that link loops you back to the Yahoo mail login page. Once you login your choices are quite limited and are for basic E-mail help. I've tried contacting yahoo through those links but I get a canned reply. It's been over a month of consistent deliverability issues to Yahoo and we're not one step closer to solving the problem. The one thing I did notice is when I modified SPF to include the IP address instead of the domain of the deferred MTA, E-mail would get through, but only for a few days then it was back to deferral. I've read the older posts on NANOG and various gripes about Yahoo greylisting on google but all the leads have come to a dead end. Does anyone know an interactive yahoo contact they could share with me? Thank you, Justin Wilson
