btinternet.com domain emails bouncing
Hi – for the last 3-4-5 months every email address we are merging with the domain btinternet.com is bouncing. We are in the UK.
When I then Reply All and resend it in Gmail, it goes fine, so it does seem clearly linked to the MailMerge not a general email setting with us.
btinternet.com is well known for spam bounces, so this isnt a completely unknown topic…but I am unsure whether I can fix this, or whether it is some header detail or whitelist that you must add/amend within your code?
Thanks for help on this.