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Very good comment from jwilding! The comment about Exchange not being able to reject non-RDNS-successes is to the point... I haven't yet understood why... Perhaps they're payed by SPAMmers.<br />
/RID
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Very good comment from jwilding! The comment about Exchange not being able to reject non-RDNS-successes is to the point... I haven't yet understood why... Perhaps they're payed by SPAMmers.
/RID

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Thanks all...excellent explanations
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Hi<br />
<br />
There seemed to be a lot of spoofed emails going about, and I was wondering how people did this? Do they telnet to some server's SMTP port and try and send out mails that way, use programs that can change the 'from' header, etc?<br />
<br />
If we receive an email we think has been spoofed, we normally check its source IP address against the registered info for that domain. But is IP spoofing usually used in conjunction with this?<br />
<br />
Thanks<br />

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Hi

There seemed to be a lot of spoofed emails going about, and I was wondering how people did this? Do they telnet to some server's SMTP port and try and send out mails that way, use programs that can change the 'from' header, etc?

If we receive an email we think has been spoofed, we normally check its source IP address against the registered info for that domain. But is IP spoofing usually used in conjunction with this?

Thanks


Email spoofing

An email client, email reader or more formally mail user agent (MUA) is a computer program used to access and manage a user's email. A web application that provides message management, composition, and reception functions is sometimes also considered an email client, but more commonly referred to as webmail.