I am running a mailing list using postfix aliases. I find that it works fine with gmail users, but yahoo is rejecting mails (note: not marking spam, simply rejecting) with the reject message citing the following help URL:
https://help.yahoo.com/kb/postmaster/SLN7253.html?guccounter=1 I am intrigued by their suggestion that goes like this: For mailing lists, also known as "listservs," you should change your sending behavior by adding the mailing lists’ address to the "From:" line, rather than the sender’s address. Also, enter the actual user/sender address into the "Reply-To:" line. On the contrary I have seen some mailing lists putting Reply-To address as that of the list leaving From address untouched. I notice netbsd mailing lists are neither altering From field nor adding Reply-To. How does it work with yahoo? (I am assuming some yahoo users would be there on the list.) About my setup (but probably that doesn't matter to above question): I have an smtp_header_check which adds Reply-To as the lists address (quite contrary to yahoo's suggestion). I have spf record: v=spf1 mx ?all Haven't tried setting DMARC/DKIM as yet. Would avoid unless that's the only way left. Mayuresh
