Hi everyone, This is the second time this particular problem has happened and I need some help. Customers who register on our forums or online catalog automatically get sent confirmation emails with their usernames and passwords. Same if they've bought something; they get a receipt confirming their purchase with all of the details. For two such customers, each using a different ISP, these emails have gotten returned with the following error message:
Remote host said: 501 5.5.2 there is a stray CR character in the message
All of the emails are sent via the php mail() function, and all have gone through except for the ones designated to these two customers. Can someone please explain the error / how I can find what's causing this / how I might fix it? Any help would be greatly appreciated; I'm at my wit's end here and can't afford to lose sales. Much thanks in advance....
Louis