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Message #00681
[Bug 604954] Re: Cannot rely on MX records to exist in the anti-spam plugin
** Changed in: mahara
Status: In Progress => Fix Committed
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Cannot rely on MX records to exist in the anti-spam plugin
https://bugs.launchpad.net/bugs/604954
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Status in Mahara ePortfolio: Fix Committed
Bug description:
One of the antispam checks we have looks for an MX record in a DNS zone. If a domain doesn't have one, then the message is marked as spam.
This is wrong because according to the DNS spec, if an MX record is not present, it uses the default A record.
So we should either remove this check altogether or extend it to look for A and AAAA records.
The first option is probably best since there will be very few zones that don't have an A record I suspect.
References