What is this email message about?
Recently I get some messages back like: ----- Transcript of session follows ----- ... while talking to mail.sourceforge.net.:
DATA
<<< 550-Envelope sender verification failed <<< 550 rejected: Cannot route to envelope sender <ronald@elmit.com> (The envelope sender does not exist according to your mail server when it was asked): response from dns.elmit.com [61.220.121.18] after "MAIL FROM: <>" was "550 5.0.0 Access denied". This does not help fight spam effectively, breaks RFCs, and prevents you from getting bounces so we can't accept mail from you 554 5.0.0 Service unavailable
What is it, why is it so? bye Ronald -- Ronald Wiplinger (CEO of ELMIT) http://www.elmit.com +886 (0) 915 653-452 - I'm a SpamCon Foundation Member, #694, Verify it at http://www.spamcon.org
* Ronald Wiplinger (ronald@elmit.com) [020930 15:36]:
What is it, why is it so?
They're checking whether they can get bounces back to you and, if not, they'll reject your mail. It looks like your mail server rejects mail with a null sender--this is a very bad thing to do and will land your domain in blacklists such the ones run by rfc-ignorant.org. -- -ckm
Christopher Mahmood wrote:
* Ronald Wiplinger (ronald@elmit.com) [020930 15:36]:
What is it, why is it so?
They're checking whether they can get bounces back to you and, if not, they'll reject your mail. It looks like your mail server rejects mail with a null sender--this is a very bad thing to do and will land your domain in blacklists such the ones run by rfc-ignorant.org.
How to fix it??? It is a standard SuSE 8.0 prof And, if they test if it bounce, but than I receive the message though! How can I test that feature by myself? How do they do that? bye Ronald -- Ronald Wiplinger, Technical Director Bright Networking Inc, http://www.2bright.net 7F, 192-1, Sec. 3, Tatung Rd., Shijr City, Taipei, Taiwan, RoC Tel.: +886 2 8647-1685, Mobile +886 915 653-452, Fax: +886 2 8647-2002
participants (3)
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Christopher Mahmood -
Ronald Wiplinger -
Ronald Wiplinger