-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 05/18/11 13:52, Vick Khera wrote: > What if you do this: eliminate the ability of your mail server to send > SMTP over IPv4, possibly by removing any IPv4 address from it, or > firewalling that ability away. > > Set up fallback_relay on this host so that all mail that did not make > it on the first try goes to your relay host. There will be *some* > IPv6 capable traffic sent that way as the result of transient > failures, but it will be mostly messages that require IPv4.
Highly creative and appreciated, I will certainly look into this. Thank you for your response as this may just yield an acceptable solution. It seems relay over IPv4 in the event of IPv6 failure would be necessary/acceptable as well and fall in-line with the "Try IPv6 first then IPv4" seen with other daemons such as DNS. - -- - -evilghost -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAEBAgAGBQJN1BamAAoJENgimYXu6xOHSlsP/RdymfP7ORXVgm2lE7kb0B9M jjj4LDX9L0T8meyhAT7138OJ86IGpuhw2QbMwHUrBXIKhwM7h3BvHoHkPN85ApaC 91kV4IcqKW6V1fKJ6hjunCFjKkj07X2aUQAYQ7RAfmZ26VDRBHMg/tHT13jFovRE sfU6l9iH0YiBBeTXiNMczg5rcnhZb3Dv6zdfhDFioWaJZDNsioFRIsvJjgHHkUoC yXwMwB059lIaC6+P5mHAYQH4EUuTj4SrgRYOu/hU7PK2jDgdl7DBicK8fbl5ddUp obEtSHhAiNS+umlIL5Dx6L9wnSip0uQCpXKXpNjKd610Zi0VNA/us53BekhtcGnB GK7hxxWy43hbDJocCKVcOXyQaHUt15EGprlpLWSG5i01qBpStBu65tRpeAh4ave5 J9Ypg0i7M4Q/Wjf4NEX1UMtOoDFZ8eSt1fkhjxmUmJ83oQFlp30zFqhbJ011nYsi Z519tXtAHxdD8IdIWi4QC3IoxmjQ/I7bUmKjhTdSTYsCHjk83GcIpLY+h8IVGTep vS9ddNI3KfG4IUU2E9mV3afOBfPTZMAcEReCNRkzQIigStotvUsDsPX91/W6WjbR qvLWk5LAZiJHaWwhmkUvIWufvbp1o/IpoOOTAN2/Aw5a3hDKjt7rkIcd9xnwCgHe hpHU5WuoCLeGCeV41LoS =f2d9 -----END PGP SIGNATURE-----