Scalix Forums

I have tried searching through the forum for this problem but was unable to find any info. I recently got Scalix working (community edition) and internally between existing users traffic is completely fine. I can also send emial to the Scalix server and it is received without a problem. If I try to send to a external address I get the email returned with the following information:



To me it looks like my ISP is blocking the SMTP port traffic based on my user account. Am I correct? If so can I redirect the traffic through another port? if yes, any info on how would be greatly appreciated.

Thanks

What I believe comcast is saying is that you're a customer and they don't allow their customers to connect to gateway-a.comcast (and likely gateway-r and gateway-s.comcast.net, basically their MX servers). Assuming you're a Comcast Commercial Services customer I would recommend you contact the email address they listed and ask them which server you should be sending through. Once you have that, you can change your sendmail smarthost to be that server. You may have authenticate to relay mail through that server, so you should search here on how to authenticate with sendmail.

Thanks,
Rachel

Thanks for the help. That is what I thought. The problem is I am a residential customer, not a commercial customer. Is there a way around that check?

Presumably you can already send mail directly from a desktop client using Comcast's residential servers - if so, you can also relay through them using sendmail.

From looking at Comcast's website it appears you'll need to both use port 587:

http://www.sendmail.org/faq/section3.html#3.39

& authenticate:

http://www.sendmail.org/~ca/email/auth.html

(see: 'Using sendmail as a client with AUTH')

HTH.