Can I set up 123-reg SPF record to allow send via smtp.virginmedia.com?
I have a domain registered with 123-reg. I use various addresses firstname.lastname@example.org and send via smtp.virginmedia.com. This has been working fine but recently emails to recipients at one particular company are being rejected with the message
550:Rejecting for Sender Policy Framework
Other emails seem to be arriving fine. It is just this particular company rejecting them. Is there something I can add to the SPF record for my domain to allow my addresses to send emails via virginmedia servers?