How long has it been since you changed it? Is it possible Google is caching SPF for longer periods of time than are in the cache to reduce their overhead?
laura > On 21 Apr 2023, at 08:53, Alessandro Vesely via mailop <mailop@mailop.org> > wrote: > > This morning I found this: > > 421-4.7.0 This mail is unauthenticated, which poses a security risk to the > 421-4.7.0 sender and Gmail users, and has been blocked. The sender must > 421-4.7.0 authenticate with at least one of SPF or DKIM. For this message, > DKIM > 421-4.7.0 checks did not pass and SPF check for [tana.it] did not pass with > ip: > 421-4.7.0 [94.198.96.74]. The sender should visit > 421-4.7.0 https://support.google.com/mail/answer/81126#authentication for > 421 4.7.0 instructions on setting up authentication. > d9-20020a05640208c900b00504b18d24f8si586620edz.362 - gsmtp > > I changed SPF recently (after changing ISP), while DKIM signing remained the > same. I attach the message. > > Best > Ale > -- > <Mail server abuse from 191.36.158.106 on 20 April > 2023.eml>_______________________________________________ > mailop mailing list > mailop@mailop.org > https://list.mailop.org/listinfo/mailop -- The Delivery Experts Laura Atkins Word to the Wise la...@wordtothewise.com Email Delivery Blog: http://wordtothewise.com/blog
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