e-mails getting rejected

[DougLass]

Originally Posted by hadaso

AFAIK "SPF alignment" means that the address in the From header (the author's address) is the same as the address in the envelope-from (i.e., the return address, used in the SMTP transaction FROM statement).

Thanks. But I guess I don't understand. In my e-mail client only the From and the To are conspicuously displayed. Where can I find the return address? Using Sender, "Received: from mail4.sendersrv.com (mail4.sendersrv.com.)" is what appears in my mail source header for the e-mails I send out. Also,"Return-Path:<bounces+FvIIKn3usG_tB1Rk@sendersrv.com>." Is sendersrv.com the return address we're talking about? The From in my e-mails is the e-mail address I ASKED Sender to apply to my e-mail. Why would I want these to be the same, and how wrong is it that they are not??

[hadaso]

Originally Posted by DougLass

... Also,"Return-Path:<bounces+FvIIKn3usG_tB1Rk@sendersrv.com>." Is sendersrv.com the return address we're talking about?

The receiver adds the Return-Path header and in it the address from the SMTP FROM statement, so that would be the return address. It is supposed to be the address to which undeliverability reprts are sent to, so it is resonable that sendersrv puts there their own address that would handle all bounces for a particular mailing list.

Originally Posted by DougLass

The From in my e-mails is the e-mail address I ASKED Sender to apply to my e-mail. Why would I want these to be the same, and how wrong is it that they are not??

I think you would certainly want them to be different in the case of a mailing list. But then it breaks SPF alignment.

[DougLass]

OK, so I'll interpret that to mean that SPF alignment is not really a big deal, especially blacklist-wise. True?

[DougLass]

OK, I've dumped Sender (which was dragging their feet in addressing this issue), and have migrated to MailerLite. Problem solved. Deliveries all work fine.