[sclug] [OT] Recommendations for email hosting?

Simon Huggins huggie at earth.li
Thu Aug 13 15:09:44 UTC 2009

On Thu, Aug 13, 2009 at 01:34:37PM +0100, Ian Park wrote:
> After much repeated explanation to the "technical support" people at
> 1and1, it emerged that 1and1 are excessively picky about checking the
> mapping between domain name and IP address for mail servers with which
> they're asked to interwork - they pray in aid RFC2181 section 10.3. The
> advice from the operator of the mail servers for st-nicolas-newbury.org
> is that although 1and1 are correct that RFC2181 requires this behaviour,
> the RFC is unreasonably strict, and 1and1 are the only operator which
> does this check.

Whilst I'm not defending 1&1...

st-nicolas-newbury.org. 18000   IN      MX      10 relay3.itsolve.ltd.uk.
relay3.itsolve.ltd.uk.  1705    IN      CNAME   detomasu.itsolve.ltd.uk.
detomasu.itsolve.ltd.uk. 1705   IN      A

Pointing an MX at a CNAME has been considered broken for a long time.
You may want to get your church to fix that.

It's not that hard.  They can create their own record for e.g.
mx.st-nicolas-newbury.org with an A record of their ISPs mail exchanger
and point their MX at it.


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