On Wed, 2004-08-04 at 20:07, Mario Flores wrote: > Hi: > > After some testing, I found that I can send email to some addresses and > cannot do it for others. I get the following error: > > SMTP<< 550 You are not allowed to send mail:sc001pub.verizon.net > > this was when I tried to send a message to my email account with my ISP. > I was able to send msg to a hotmail account. I was not able to send msg > to other accounts (other domains) but did not get the error above either > (maybe the msg gets filtered based on some criteria like fake dns name?). > > My big questions is why can't I send this email from my local account > and I can send it via Mozilla (using my ISP account). I read somewhere > that POP is for retrieving email from the server and smtp is used for > outbound messages (from the email agent like mozilla to the mail server). > Most well configured mail servers will not accept mail from dynamic IP's and/or hosts with no MX record. If you are trying to send mail out using your own mail server then you most likely have it misconfigured.
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