On 08/15/2013 03:12 AM, xaf wrote:
|--> ChandranManikandan, le 15/08/2013 04:30, a dit :
Our server is hosting in house with Public ip. Most of our roaming
users using outlook from their laptop from overseas. They are unable
to send email from their laptop and getting error. But if we send from
our office with the same network it's send perfect.Do i need to setup
in our server.
which port are they using, 25 587 ?
(most isp are blocking port 25)
the answer is 25 -> tell them to use 587
(check before if 587 isn't blocked by your firewall)
if they already use 587, ask them to copy/send the error
xaf
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Good advice. The stock RBLs, which are used on port 25 but not on port
587, are probably blocking dynamic addresses.
An alternative is to install spamdyke (HIGHLY recommended). Not only
does spamdyke do a magical job blocking spam, but it disables RBL checks
(all checks actually) for authenticated users on port 25.
The next QTP release will hopefully contain spamdyke, which will
alleviate this problem permanently. In the meantime, simply run the
qtp-install-spamdyke script, stop and start qmail, and you should be
good to go. The default spamdyke configuration is pretty safe and effective.
Note, clients really *should* use port 587 for submissions though.
--
-Eric 'shubes'
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