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Problem with sendmail headers

2582 Views 1 Reply 2 Participants Last post by  lensman3

I am sending mail with sendmail and when someone receives an email from me , the headers say this:

from ( [])

I think this is the reason most of them receive it in spam folder.

Why? Shouldn't be something else? Without theplanet and ?
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You are going to have to modify the file "/etc/mail/" and either change or add some features. Then you will have to make the new and install it.

The following lines will have to changed or added to
My ISP is comcast so I send mail to their mail forwarders, otherwise if I send mail from my home IP number it will be considered as spam because most IP numbers are MX blacklisted. Only comcast's mail forwarders are removed from the black list.

Probably the most important line is:
Sendmail knows to send mail to comcasts mail forwarder before anything else happens.

I also wouldn't be surprised if most ISPs block port 25 so that email can't get out of their domain.

Go to "" and RTFM. You will find what you want there. You will also have to install the sendmail development package (at least on Fedora). Also the m4 assembler will have to be installed so that the can be compiled into
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