I was told that this would fit here after I put it on WebMasters.
I am hoping someone can tell me what would happen if a line in an email header was longer than the maximum 998 characters as specified by RFC-2822.
My original question follows:
I am investigating an error in some emails being sent out. We send an email to the client, the ISP runs it through a CloudMark anti spam check. This check then adds and X-CNFS-Analysis header which is over 998 characters long (longer than it is allowed to be according to RFC-2822) .
These emails are showing up as pure garbage. If a header line is too long could this cause the email to become garbage?
This only happens when sending to clients using Hotmail.