Hello, I have an issue to send SMS messages to guests. I have largely ignored it for several months, but I am being pressed to resolve this in my instance. I get a bounce message: Your message contains invalid characters (bare line feed characters) which the email servers at txt.att.net don't support. Status code: 550 5.6.11
Research shows that many receivers do not allow this. I use O365 and it seems they disabled a functionality that automatically corrected this for security reasons. I have to assume that eventually others will also disable this. It seems that the message contains LF instead of CRLF. Where can I modify this? Kind Regards, Jeremy Yoke Info Tech Manager
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