Alright, so: Nabble[1] is trying to send mail from your Mindspring address to mailman.qth.net.
Mindspring has an SPF record, which lists which servers are allowed to send outgoing messages from mindspring.com. Generally this lists Mindspring's email servers, and messages sent from anyone else are assumed to be spam. This is good; it's a step towards preventing junk and forged email. mailman.qth.net uses spamexperts for spam filtering[2], and spamexperts' server is rejecting your message because Nabble's outgoing mail server isn't one of Mingspring's allowed servers. This is good; Nabble could well be a spammer, or someone could be using Nabble to forge messages from Mindspring's customers. The way to fix this is to email the list directly ([email protected]) from your Mindspring account, using their webmail or a client pointed at their SMTP server. [1] I found this by looking up the reverse DNS for 162.253.133.85, which is n2.nabble.com. [2] I found this by looking up the MX record for mailman.qth.net, which is mx.spamexperts.com (plus a couple of fallback servers). On Fri, Mar 12, 2021 at 8:45 PM Ned Mountain <[email protected]> wrote: > <[email protected]>: host mx.spamexperts.com[38.89.254.156] said: > 550 > > 162.253.133.85 is not allowed to send mail from mindspring.com. Please > see > > the SPF record, with scope mfrom, identity [email protected] > , > and > > ip 162.253.133.85 (in reply to end of DATA command) > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

