1 Topic by beandog

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Topic: Sender address rejected: not owned by user

I have a trusted SMTP account that I'd like to allow to send email with various from: lines.  However, I get the following error when I try to send an email:

Sender address rejected: not owned by user

I can't get iRedAdmin working (see earlier thread).  How else would I go about disabling this error for a particular user (or in general)?


Ben Dilts

2 Reply by ZhangHuangbin

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Re: Sender address rejected: not owned by user

beandog wrote:

Sender address rejected: not owned by user

You can remove 'reject_sender_login_mismatch' in postfix /etc/postfix/main.cf.

3 Reply by maxB (edited by maxB 2011-10-09 01:54:24)

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Re: Sender address rejected: not owned by user

I would like to know, what this change exactly does? What's the consequence if I remove this line?

Postfix documentation says the following:

Reject the request when $smtpd_sender_login_maps specifies an owner for the MAIL FROM address, but the client is not (SASL) logged in as that MAIL FROM address owner; or when the client is (SASL) logged in, but the client login name doesn't own the MAIL FROM address according to $smtpd_sender_login_maps.

Sounds like a reasonable thing - leads me to the question: Why do I get this error?

4 Reply by ZhangHuangbin

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Re: Sender address rejected: not owned by user

It's clearly explained in Postfix document which you pasted in above reply.

5 Reply by Gistek-s

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Re: Sender address rejected: not owned by user

If the configuration is set that way, does not make the system less secure?

6 Reply by ZhangHuangbin

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Re: Sender address rejected: not owned by user

Hi Gistek-s,

Please ask your question in a new forum topic, don't hijack other's.