[GH-ISSUE #137] Invalid from address '<>' and invalid SmtpAddress ''. Not signing email. #104

New issue

Closed

opened 2026-02-26 10:35:56 +03:00 by kerem · 2 comments

kerem commented

2026-02-26 10:35:56 +03:00

Owner

Originally created by @mateusz-dot on GitHub (Jan 27, 2016).
Original GitHub issue: https://github.com/Pro/dkim-exchange/issues/137

Hello,

I am using version 3.0.1. In EventLog Viewer I have many logs like:

"Invalid from address '<>' and invalid SmtpAddress ''. Not signing email."

Is it normal ?

Originally created by @mateusz-dot on GitHub (Jan 27, 2016). Original GitHub issue: https://github.com/Pro/dkim-exchange/issues/137 Hello, I am using version 3.0.1. In EventLog Viewer I have many logs like: "Invalid from address '<>' and invalid SmtpAddress ''. Not signing email." Is it normal ?

kerem

2026-02-26 10:35:56 +03:00

closed this issue
added the
question

agent
labels

kerem commented

2026-02-26 10:35:57 +03:00

Author

Owner

@Adam1621 commented on GitHub (Jan 28, 2016):

I get the same log messages occasionally. We recently changed email domains. We have added our new domain to dkimsigner but not the old one. There are still some automated processes sending emails with our old domain so I believe that is why I'm getting these messages. This may not help but thought I'd mention =)

@Adam1621 commented on GitHub (Jan 28, 2016): I get the same log messages occasionally. We recently changed email domains. We have added our new domain to dkimsigner but not the old one. There are still some automated processes sending emails with our old domain so I believe that is why I'm getting these messages. This may not help but thought I'd mention =)

kerem commented

2026-02-26 10:35:57 +03:00

Author

Owner

@Pro commented on GitHub (Jan 30, 2016):

The invalid from address message is an information output and not an error.
This means that the agent got a mail without a from address, which may be system emails.
You can check your Exchange Messages Log to see which messages those are exactly.

That should be normal behaviour, as log as all you other emails are signed correctly.

@Pro commented on GitHub (Jan 30, 2016): The `invalid from address` message is an information output and not an error. This means that the agent got a mail without a from address, which may be system emails. You can check your Exchange Messages Log to see which messages those are exactly. That should be normal behaviour, as log as all you other emails are signed correctly.