Bulk Email Flags
I'm hoping someone can help me - I've taken over a mailing list from someone and they have a system in place that generates EML files that are then sent out using a 3rd party provider.
This has worked well in the past (2+ years), however for some reason, we are now getting blacklisted some weeks - The emails are totally opt-in, and don't even advertise, they are based on news and events. I have an unsubscribe link on each one, and each email is totally personal to that person.
However, I think it's something to do with headers - Someone told me recently that I have to have headers set that specify the email as a mass mailing - However I cant find any information on what headers etc? Can anyone here shed some light?
Thanks,
Richard
