DMARC/SPF/DKIM configuration for whitelabeled "From" email address

After activating white-labeling, you have the option to customize the "From" email address and display name in the ‘Emails’ section of your ‘White-labeling’ tab. This will ensure that any transactional mails sent by the Luzmo application (e.g. invites, password resets, alerts, exports, etc.) will be sent via the email address you configured instead of ours.

Before setting up your custom "From" email address, it's important that you first ensure your domain's DMARC policy allows emails to be sent from your domain via our mailing provider! If this not configured (correctly), emails might not be delivered or automatically end up in spam. To prevent this from happening, follow the preparation steps below to set up SPF and/or DKIM.

SPF

SPF is used to prevent sender address forgery; to authorize our email server to send emails on behalf of your domain, you should add the SPF CNAME record spf.luzmo.com to your DNS provider.

DKIM

DKIM is used to prevent email spoofing of your domain. As a result, you'll need to authorize our email server to send emails on behalf of your domain, which requires the following steps:

1. Please reach out to support@luzmo.com to indicate you'd like to set up a whitelabeled "From" email address in Luzmo, and provide the following information:
   • The domain name of the email address you want to set up in Luzmo (e.g. luzmo.com for info@luzmo.com)
   • The custom DKIM selector (combination of 3 letters/numbers) - this is only necessary if you already have a DKIM config on the same domain that is using s1/s2 (e.g. if you're using Sendgrid with a default config yourself).
2. Once we've authenticated your domain, we'll provide CNAME DNS records (see example below) for you to add to your domain's DNS configuration. These records allow our email server to send emails on your behalf. Note that DNS changes may take up to 48 hours to propagate.
3. Once you've set up the CNAME records, let us know - we’ll validate the setup and let you know when this has been completed.
4. If you've also set up the SPF record in your DNS configuration (see above), all transactional emails will be sender-authenticated. You can now set up your desired "From email address" in the Whitelabeling settings in Luzmo 🎉

Example DKIM CNAME records

After reaching out to our support team (see steps above), we'll provide you with a set CNAME DNS records like the following, which should be added to your DNS provider's configuration:

s1._domainkey.<your_domain> → s1.domainkey.u2328841.wl092.sendgrid.net
s2._domainkey.<your_domain> → s2.domainkey.u2328841.wl092.sendgrid.net

These currently resolve to:

s1.domainkey.u2328841.wl092.sendgrid.net. 1800 IN TXT "k=rsa; t=s;
p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7eI9RTp2Q52E6r5hwVfFGyTWORDmj/vN4Oh/ssVMsYFwM7Nmf85O
iFSGgiTCrPNHPg9KeBKDGz+XnHUXxdZVRKzN6PjjyvzRLpb6jU2pjGpdCnSSXmsTCza8R4ahPsHFyhmYly8WBqOGripF6hy0ToV9
E6PXOa/hvH9AddeqB823gO3mY7VwLA89fNIiiYemY4ZSK" "KYvPcEcJKJKqcevrSVYFC/myMbcYZfddnfmNKNLLqgAczVhaWn8y0/sDgKF08LFumgBt/eG21tSHPqxNnufkg35A6ovZjuFi6+3TEN
Rjdu4JDxzKEXrmpYxtveRZDfFz/YNY87wNvPWyzI8jwIDAQAB"

and

s2.domainkey.u2328841.wl092.sendgrid.net. 1800 IN TXT "k=rsa; t=s;
p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC2qdTWM6e9PWvZQ9R3RfS4jrD8n8uaAcJVPfd2zz6vwsSPVl++PCbGA
iHSs0bdCUN7XrWurtbqGm9rof1dhfYzBSSm09RWhvcn5pdrTTY/FiHjcSeno3XXOLGB9TiRrnPKZyKHUnoTsqN/42b33uLSDl00ZCpj
iwgE17YxGJM2bQIDAQAB"