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* DigitalOcean: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-on-ubuntu-20-04 | * DigitalOcean: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-on-ubuntu-20-04 | ||
** Interesting - see: sudo DEBIAN_PRIORITY=low apt install postfix | ** Interesting - see: sudo DEBIAN_PRIORITY=low apt install postfix | ||
= SPF DNS Entry = | |||
== Traxel Settings == | |||
* IPV4: 69.10.40.10 | |||
* IPV6: fe80::d227:88ff:fe34:7999/64 | |||
* Format: v=spf1 ip4:40.113.200.201 ip6:2001:db8:85a3:8d3:1319:8a2e:370:7348 include:thirdpartydomain.com ~all | |||
* Start with the SPF version, v=spf1. | |||
** Indicates that this is an SPF record. | |||
** Will always be spf1 as other SPF versions have been discontinued. | |||
*** We'll only ever need 640K of RAM. | |||
* Next, all IP addresses that are eligible to send email on behalf of your domain. | |||
** Space delimited | |||
** prefix ip[n]: | |||
** ip4:69.10.40.10 ip6:fe80::d227:88ff:fe34:7999 | |||
* Next comes the include statement, which lists every third party organization that sends email on your behalf. | |||
** Does this mean interserver? Is this the part where reverse lookups come in? | |||
** include:thirdpartydomain.com | |||
Revision as of 23:57, 29 December 2021
Postfix Tutorials
- RedHat: https://www.redhat.com/sysadmin/install-configure-postfix
- Linux.com: https://www.linux.com/training-tutorials/install-and-configure-postfix-mail-server/
- Postfix: http://www.postfix.org/BASIC_CONFIGURATION_README.html
- DigitalOcean: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-on-ubuntu-20-04
- Interesting - see: sudo DEBIAN_PRIORITY=low apt install postfix
SPF DNS Entry
Traxel Settings
- IPV4: 69.10.40.10
- IPV6: fe80::d227:88ff:fe34:7999/64
- Format: v=spf1 ip4:40.113.200.201 ip6:2001:db8:85a3:8d3:1319:8a2e:370:7348 include:thirdpartydomain.com ~all
- Start with the SPF version, v=spf1.
- Indicates that this is an SPF record.
- Will always be spf1 as other SPF versions have been discontinued.
- We'll only ever need 640K of RAM.
- Next, all IP addresses that are eligible to send email on behalf of your domain.
- Space delimited
- prefix ip[n]:
- ip4:69.10.40.10 ip6:fe80::d227:88ff:fe34:7999
- Next comes the include statement, which lists every third party organization that sends email on your behalf.
- Does this mean interserver? Is this the part where reverse lookups come in?
- include:thirdpartydomain.com