![]() ![]() I’m sure I’m flooding the net with NDRs, but it looks like it’s hooking after the smtp service, not into or before. Not that this software should be sending NDRs. Open it up in notepad, change the 5.1.1 references to 5.5.0 and put in your own custom anti-spam message instead of “this user does not exist”. Fortunately there’s a template file in MailEssentials\templates called ndr.xml. ![]() It’s not signaling exchange to send an NDR, but rather taking these actions itself, so make sure logging is on. It’s certainly not to inform the legitimate user their mail was rejected, as the NDR is a farce. In hopes of convincing the spammer the account doesn’t exist anymore? As if bulk mailers use legitimate return addresses. Here’s the fun catch though, it sends a 5.1.1 “email account does not exist”. I was troubleshooting a problem today where an SMTP sender was getting an NDR when emailing one of my users, but the exchange message tracking center claimed the message was delivered to the store.Įnter GFI MailEssentials, which optionally sends an NDR when it thinks something is spam. I inherited GFI MailEssentials and MailSecurity recently.
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