Hi Jeanne, et. al., It appears that you may not be receiving messages posted by you because of Yahoo’s DMARC policy. I’m not sure if you are familiar with DMARC policies implemented by email service providers since 2014 (which you can read more about here: https://help.yahoo.com/kb/SLN24050.html and here: https://en.wikipedia.org/wiki/DMARC), but these policy changes are an attempt to curb spam. One downside to DMARC policy implementation is that sometimes a legitimate email message will get flagged as spam and won’t get delivered to a recipient. One of the DMARC policies used by DMARC-compliant email service providers, such as Yahoo, may result in a message getting flagged if, for example, it originated from a Yahoo email address, but did not appear to originate from the Yahoo email server.
In the case of messages sent to the NYSbirds-L eList, all messages come in to Cornell’s Lyris Listmanager server from a sender’s email service provider (i.e., domain = @yahoo.com<http://yahoo.com>), which then gets redirected out from Cornell’s Lyris Listmanager server (domain = @list.cornell.edu<http://list.cornell.edu>) to all subscribed email addresses (currently 1,255 subscribers). This process makes the original recipient email address server and the “sender’s” email address server different. When the message is attempted to be delivered to a DMARC-compliant email service provider, especially if the recipient has the same email service provider as the original sender’s (i.e., Yahoo), then the message gets flagged, rejected, and fails delivery. Here’s a good graphic that visually demonstrates this process: https://www.proofpoint.com/sites/default/files/pftp-dmarc-blog-healthcare-2.png One approach to work around this DMARC spam filtering is to arrange with your Internet Service Provider to whitelist any messages coming from the @list.cornell.edu<http://list.cornell.edu> domain. Here are some useful links: https://www.thebalancecareers.com/how-do-i-whitelist-email-sender-or-a-domain-in-yahoo-mail-3515043 http://onlinegroups.net/blog/2014/02/25/how-to-whitelist-an-email-address/ https://itstillworks.com/add-domain-names-safe-lists-yahoo-20269.html While I know how frustrating this may be, hopefully this is helpful in explaining the root cause and I apologize that some subscribers are having these or similar issues. Sincerely, Chris Tessaglia-Hymes NYSbirds-L eList Owner Ithaca, NY On Nov 22, 2018, at 8:54 AM, Jeanne <[email protected]<mailto:[email protected]>> wrote: I posted a lapland long spur yesterday along with snow buntings and horned larks. It was never posted!! But they posted my question immediatly? Lmao Sent from Yahoo Mail on Android<https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature> -- NYSbirds-L List Info: Welcome and Basics<http://www.northeastbirding.com/NYSbirdsWELCOME.htm> Rules and Information<http://www.northeastbirding.com/NYSbirdsRULES.htm> Subscribe, Configuration and Leave<http://www.northeastbirding.com/NYSbirdsSubscribeConfigurationLeave.htm> Archives: The Mail Archive<http://www.mail-archive.com/[email protected]/maillist.html> Surfbirds<http://www.surfbirds.com/birdingmail/Group/NYSBirds-L> ABA<http://birding.aba.org/maillist/NY01> Please submit your observations to eBird<http://ebird.org/content/ebird/>! -- -- Chris Tessaglia-Hymes Listowner, NYSbirds-L Ithaca, New York [email protected]<mailto:[email protected]> NYSbirds-L – Archives<http://www.mail-archive.com/[email protected]/maillist.html> NYSbirds-L – Welcome and Basics<http://www.northeastbirding.com/NYSbirdsWELCOME.htm> NYSbirds-L – Rules and Information<http://www.northeastbirding.com/NYSbirdsRULES.htm> NYSbirds-L – Subscribe, Configuration and Leave<http://www.northeastbirding.com/NYSbirdsSubscribeConfigurationLeave.htm> -- NYSbirds-L List Info: http://www.NortheastBirding.com/NYSbirdsWELCOME.htm http://www.NortheastBirding.com/NYSbirdsRULES.htm http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/[email protected]/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L 3) http://birding.aba.org/maillist/NY01 Please submit your observations to eBird: http://ebird.org/content/ebird/ --
