This might not be the right forum, so I apologize up front. I have a situation where my ISP requires outbound SMTP to be authenticated, such as in a mail client. I have an application I have built that sends email to users when there is a severe weather event. Some of those users are at my ISP. (If they are not, it isn't an issue.) Is there anyway to configure sendmail to do outbound authenticated SMTP to another mail server? This issue is also important, because this ISP (comcast) only provides a java/macromedia web mail client, which my PDA can't access. I have squirrelmail running now, which it can, but since I need authenticated outbound SMTP, I can't send email. Not very useful. Thanks Chris Hello Chris, I too have a comcast account and can speak to this. The problem is not so much an smtp client problem but a sendmail / comcast issue. Comcast's smtp server will reject any direct connection from your sendmail daemon. I have played around with it and watched the logs closely. Presumably this is to prevent spam relay's - although tons of spam flies through their filters on a dialy basis which is another story ;) You have a few options. 1) use sendmail with a valid domain /sendmail server hosted externally setup to allow relay from your box - probably not practical for what you are doing. 2) do not use sendmail and use ssmtp - it replaces sendmail and accepts the sendmail command and options. This will work at getting the mail off your box to smtp.comacast.net. I have used it in the past. The mail will come "from" the address specified in it's configuration file. This is a trade off. 3) re-write your app to not use your local mailer but cat a message using smtp's syntax. see http://en.wikipedia.org/wiki/SMTP#Example_SMTP_communication I used option 2 with success - behind a firewall. -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
