I've just noticed that emails sent to our group accounts (@cheshirewalkers.org.uk) are not being forwarded to btinternet.com email accounts - it started around a week ago. Has anyone else noticed this or award of an issue?
Thanks
Reporting-MTA: dns; fwd-relay2.stackmail.com
Action: failed
Final-Recipient: rfc822;*********@btinternet.com
Status: 5.0.0
Remote-MTA: dns; mx.bt.lon5.cpcloud.co.uk
Diagnostic-Code: smtp; 421 Too many messages (1.5.6.3) on 2018/05/31 03:23:00 BST from un-validated IP address: 185.151.28.76. Please add a SPF record for the domain cheshirewalkers.org.uk to your DNS or ask your Broadband Provider / Domain Registrar to do this, we will be unable to deliver email until this is done due to the volume of email being sent from this IP address. Guide for bulk senders
www.bt.com/bulksender
: retry timeout exceeded
