[Gllug] blacklisted mail servers

[paul]

If a mail server is blacklisted by a company, but the people running the 
server are not guilty of spamming - I.E: they have been used as a spamming 
relay, does all mail get blocked or is it dependent upon who blacklists you?

Also is there a quick way to check the security settings (relay settings etc) 
within sendmail?

thanks !
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