I have been searching around, but not sure of all the facts I need. Let me explain.I have stayed out of the SMTP game for a while and have become ignorant of the newer developments.Prior to my current IP address, it was a commercial IP address from a Sprint pool out of Florida. It was never challenged when I sent e-mails. But since CenturyLink has taken over Embarq after the merge with Sprint (land line), my DSLAM was changed and the IP address updated to a subscriber line (which I am paying for I assure you - another fight for another day). Since then, I have only sent two e-mails and both to Yahoo! addresses - one just a while ago. The first one failed because I was using my internal DNS for some funky stuff and it needed resetting. I am now using CenturyLinks DNS. However, I never set up SPF and DKIM and though I should.Okay. That is a lie. I just set up a SPF record - after sending the e-mail. Smart huh? However, while poking around my server, DKIM is not installed and therefore not available at this point. And I am thinking, Sheesh! Do I really have to do this?And that is my question to you. Since my server worked fine before, I am sure I need more today. Is the SPF record enough for Yahoo!, GMail, and others?? Do I really need DKIM? I ask this keeping in mind that there are blacklists that list my IP address block as a subscriber block. This is what would stop my e-mail from going through with some larger ISPs normally and why I never worked too hard. This is an important fact. I need to negate enough negative scores that the subscriber check may not matter if at all possible. Not sure it is.I would not care except that two of my friends are on Yahoo! and I just responded to one today. As well, being a Landlord that is advertising on apartments guide, rentals, and other online sites, I noticed that all users so far are using Yahoo! and GMail. Nor do I blame them!! So I guess I should care a little.[Update]As it turns out, my e-mail was accepted by Yahoo!, however, I cannot say whether it went into a spam bucket or not. I do not have a notice from Yahoo! saying if my e-mail is rejected as spam or otherwise. I am still concerned with Yahoo! and other e-mail services such as GMail. I almost never send e-mail, but when I do it is often very important.
Are SPF and DKIM records needed when the SMTP IP is marked as a subscriber block?
dns;email;spf;dkim