Thanks, although I addressed it to the LMC events email, this is what came back:
"This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
neil.sims1@ntlworld.com host mxin5.virginmedia.com [84.116.6.18]
SMTP error from remote mail server after end of data:
554 5.2.0 MXIN617 Message contains Spam Content ;id=NtGYt5PTRyGb3NtGYtyca8;sid=NtGYt5PTRyGb3;mta=mx9-prd-nl1-vmo;dt=2024-12-18T13:35:02+01:00;ipsrc=185.151.28.76;"
(couldn't paste an actual screenshot)