[Tutor] problem with rejected mail smtplib

[shawn bright]

Hello there,
i have a customer list, each with a number of email address that we send
notifications to via text message.
the problem is, there are a number of providers ( just two ) that reject our
messages.
the script goes a little something like this :

Address = 'going at somewhere.net'
>From = 'me at myhost.net'
message = 'From: me at myhost.net\r\nTo: %s\r\nSubject: %s\r\n\r\n%s' %
(Address,'alert',message)
server.sendmail(From, Address, message)

most of the time it goes thru ok. but only some providers have a problem.
However, those same providers get messages if i send them thru Evolution.

any ideas of what to check out?

thanks
-sk
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