Sent newsletter to internal company email alias - received 550 [internal] [oob]

[Tera_Hudson]

Yes, i know there are threads about this.

My IT can't seem to figure out how to get the server to accept the email to the alias -- what gives? anyone experience this?

[SanfordWhiteman]

Your IT should know why it's bouncing -- they have the SMTP logs. Particularly for an out-of-band bounce, which means the message was received by more than one of your company's servers.

Without more details on the bounce message there's no way we could help.