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You are here: Messaging Postmaster > Error Codes
 
Error Code Description What To Do
552 - [$(_id) attachment extension is forbidden] The message has been rejected because it contains an attachment with one of the following prohibited file types, which commonly contain viruses: .shb, .shs, .vbe, .vbs, .wsc, .wsf, .wsh, .pif, .msc, .msi, .msp, .reg, .sct, .bat, .chm, .isp, .cpl, .js, .jse, .scr, .exe Ensure that your mailings do not contain attachments with these file types

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