[nSLUG] Mail movement issue

Bill Davidson bdavidso at supercity.ns.ca
Thu Sep 29 09:42:06 ADT 2005


OK, first of all, what do the remote servers say when you try to send
them mail?  Is the mail rejected or bounced?  There will always be a
response from the server, and it will be in the mail logs.

Second, is your mail server configured to relay through its upstream
SMTP relay?  If you have an IP address from, eg., Eastlink, then in all
likelihood a lot of servers will see your mail as coming from a dynamic
or consumer IP address, and will not accept mail from you.  However, if
you relay through smtp.eastlink.ca, you should have no problems.

On Wed, 2005-28-09 at 17:33 -0300, Rowan Townshend wrote:
> Hello all,
>   I'm still at the server project, and I've come across another 
> problem.  The server seems to have problems sending mail to places like 
> Hotmail and Dal, mail is arriving fine from those domains.  Now, when 
> Hotmail first came up I instantly thought "SenderID".  So I do some 
> digging online and eventually come across this site: 
> http://spf.pobox.com/  I generated some entries for my DNS entry (stored 
> on the server) and put them in.  Now instead of not being able to send 
> mail to those domains at all, I can sometimes/sometimes not send mail 
> there.  Perhaps I am missing something in the way of protocol to 
> distinguish my server from a spammer?  Would I be better off if I went 
> with a MTA like Postfix instead of Sendmail?
> Specs:
> Dell PowerEdge SC-1420
> Slackware Linux 10.1
> Kernel: 2.4.29
> Sendmail: 8.13.5
> -Rowan Townshend
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Bill Davidson
bdavidso at supercity.ns.ca


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