On 27.11.18 21:48, John Fawcett wrote:
The reason the ip changes frequently is because it's an xDSL line with a
dynamic ip. Some devices on the network need to send emails to my mail
server which can go out over this connection. My ISP correctly lists the
dynamic ips in PBL. I use zen.spamhaus.org list on my mail server which
includes PBL so I am blacklisting email arriving from the xDSL line. I
wanted to make an exception by whitelisting my own ips. For my fixed ips
there is no problem I just list them in an access file. For my dynamic
ip I could not do that easily. I could just use the email relay of my
ISP on these devices, but the the thing is they don't use the xDSL
exclusively. Therefore the only solution I see is to use an
authenticated connection to the mail server.
connection to alternative ports wher authentication is required and
postscreen and blacklists are not used it exactly what is needed in these
cases. Those ports were even designed for this purpose...
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
One OS to rule them all, One OS to find them,
One OS to bring them all and into darkness bind them
