In article <[EMAIL PROTECTED]> [EMAIL PROTECTED] writes: >On Sat, Sep 22, 2001 at 05:37:44PM +0100, xio wrote: >> On Thu, Sep 20, 2001 at 09:09:09PM -0400, Stephen Gran wrote: >> I used to have my SUSE box configured that way. However I couldn't send >> mails to some mailservers because they refused to accept mails from >> dailup-hosts. >> How do you avoid that problem? >AFAIK, the only reason why an SMTP server will refuse to accept deliver >is if it a) can not resolve your mailname (check /etc/mailname) and >b) if it can not match your host name with your IP (ie it will need >to be able to do a host -a [you.ip.address] and get an address (provided >by your ISP) that will then map back into the same IP.
Nope, sendmail can reject a connection for any reason it was configured to. I reject mail from known open relays, known dialups, and known spam-supporting ISPs. I also reject the connection if the mail-from header doesn't have a valid domain or the connecting host doesn't have proper rDNS. See: http://mail-abuse.org/ http://orbl.org/ http://ordb.org/ http://relays.osirusoft.com/ http://www.blars.org/block.html Sending mail direct from a dialup is a trick many spammers have used to bypass thier ISPs spam filters and many ISPs ignore complaints sent about mail from thier dialups. You'll need to find a relay that will accept your mail (and not everyones mail). This will involve some kind of authentication. -- Blars Blarson [EMAIL PROTECTED] http://www.blars.org/blars.html "Text is a way we cheat time." -- Patrick Nielsen Hayden