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cpg1.5.46 Security release - upgrade mandatory!
The Coppermine development team is releasing a security update for Coppermine in order to counter recently discovered vulnerabilities. It is important that all users who run version cpg1.5.44 or older update to this latest version as soon as possible.

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Author Topic: Your Forums 'activation' email fails 'Sender Address Verification'  (Read 9549 times)

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When I was attempting to register for the boards, my host which has implemented Postfix SAV would not accept your web form which had an invalid 'MAIL FROM' in the SMTP Envelope:

Dec  6 14:05:28 mx3 pf-in/smtpd[82014]: NOQUEUE: reject: RCPT from[]: 554 5.1.7 <>: Sender address rejected: undeliverable address: host[] said: 550 Unknown user (in reply to RCPT TO command); from=<> to=<MY_EMAIL_ADDRESS> proto=ESMTP helo=<>

Your verification email has the envelope (SMTP Session, not header) MAIL FROM of

However your MX server responds 550 Invalid user when attempting to validate that address.

I had to beg my ISP to whitelist your revdns ([]), but it would be much simpler if your MAIL FROM where a valid mailbox, even if you had it delivering to |>dev/null

Joachim Müller

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Re: Your Forums 'activation' email fails 'Sender Address Verification'
« Reply #1 on: December 07, 2009, 08:29:21 am »

You're right. Thanks for the report.

I will quote your message in a new thread on a dev-only board and we'll try to come up with a solution. Thanks again.

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