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Top Forums UNIX for Dummies Questions & Answers Adding SPF records......please help Post 302194576 by era on Tuesday 13th of May 2008 07:49:06 AM
Old 05-13-2008
Do you know where the zone files are and how to edit them?

Once you have that done, you can probably send a simple signal to bind to have it reread its configuration files without actually restarting completely. See its local manual page.

If your host offers some sort of web panel interface to the DNS interface, maybe you can even add TXT records through that, although it sounds like they already told you you have to do it by hand.

Keep in mind that the TTL on DNS will cause any change to take time to propagate. You can always query the authoritative server directly, but secondary servers will sit on their cached values for however long the TTL says they can.

Without information about your domain, it's hard to make an informed recommendation, but SPF -all is a stronger restriction than ~all. Assuming you are in a position to set and enforce a policy that nobody except the IP addresses you name are allowed to send email in your domain's name, you should be fine to use the stronger restriction.
 

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Net::DNS::RR::SPF(3)					User Contributed Perl Documentation				      Net::DNS::RR::SPF(3)

NAME
Net::DNS::RR::SPF - DNS SPF resource record SYNOPSIS
use Net::DNS; $rr = new Net::DNS::RR('name SPF spfdata ...'); $rr = new Net::DNS::RR( name => 'name', type => 'SPF', spfdata => 'single text string' ); $rr = new Net::DNS::RR( name => 'name', type => 'SPF', spfdata => [ 'multiple', 'strings', ... ] ); DESCRIPTION
Class for DNS Sender Policy Framework (SPF) resource records. SPF records inherit most of the properties of the Net::DNS::RR::TXT class. METHODS
The available methods are those inherited from the base class augmented by the type-specific methods defined in this package. Use of undocumented package features or direct access to internal data structures is discouraged and could result in program termination or other unpredictable behaviour. spfdata $string = $rr->spfdata; @list = $rr->spfdata; $rr->spfdata( @list ); When invoked in scalar context, spfdata() returns the policy text as a single string, with text elements concatenated without intervening spaces. In a list context, spfdata() returns a list of the text elements. COPYRIGHT
Copyright (c)2005 Olaf Kolkman, NLnet Labs. All rights reserved. This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself. Package template (c)2009,2012 O.M.Kolkman and R.W.Franks. SEE ALSO
perl, Net::DNS, Net::DNS::RR, Net::DNS::RR::TXT, RFC4408 perl v5.18.2 2014-01-16 Net::DNS::RR::SPF(3)
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