nanog mailing list archives
RE: Problems sending mail to yahoo?
From: "Frank Bulk" <frnkblk () iname com>
Date: Thu, 10 Apr 2008 13:48:52 -0500
Q> Does Yahoo! use "greylisting" to reject messages? A> No. The most commonly understood form of "greylisting" is where an SMTP server will reject every message the first time it is attempted, and then accept it if the sending server retries later. The theory is that spammers won't retry messages, while legitimate senders will. Yahoo! does not utilize this method. http://help.yahoo.com/l/us/yahoo/mail/postmaster/postmaster-05.html -----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of Mike Lewinski Sent: Thursday, April 10, 2008 1:10 PM To: nanog () nanog org Subject: Re: Problems sending mail to yahoo? Barry Shein wrote:
Is it just us or are there general problems with sending email to yahoo in the past few weeks? Our queues to them are backed up though they drain slowly.
I know that Yahoo does greylisting, and we often have a large queue backup as a result of mailing lists with a lot of @yahoo.com addresses. As long as you keep retrying I find that they do eventually get through. Between greylisting and sender callback verification, it seems that overall email delivery is increasing in latency and decreasing in reliability.
Current thread:
- Re: Problems sending mail to yahoo?, (continued)
- Re: Problems sending mail to yahoo? Chris Owen (Apr 10)
- RE: Problems sending mail to yahoo? Raymond L. Corbin (Apr 10)
- Re: Problems sending mail to yahoo? Chris Stone (Apr 10)
- RE: Problems sending mail to yahoo? Raymond L. Corbin (Apr 10)
- Re: Problems sending mail to yahoo? Chris Stone (Apr 10)
- RE: Problems sending mail to yahoo? Raymond L. Corbin (Apr 10)
- RE: Problems sending mail to yahoo? Frank Bulk (Apr 10)
- Re: Problems sending mail to yahoo? Mike Lewinski (Apr 10)
- RE: Problems sending mail to yahoo? Edward B. DREGER (Apr 10)
- Re: Problems sending mail to yahoo? Eric Esslinger (Apr 10)
- Re: Problems sending mail to yahoo? Valdis . Kletnieks (Apr 10)
- RE: Problems sending mail to yahoo? Raymond L. Corbin (Apr 10)
- Yahoo Mail Update Jared Mauch (Apr 10)