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homelab-infra/apps/smtp-relay/scripts/enable-dkim.ps1
T
panxiao81 88a02ababa
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Establish clean homelab infrastructure baseline
Reorganize the brownfield repository, remove retired and generated artifacts, harden ignore rules, and record the GitOps/IaC redesign.
2026-09-09 16:47:20 +00:00

32 lines
1.4 KiB
PowerShell

# DKIM step 1 of 2: create the signing config (disabled) and PRINT the exact CNAME
# targets. The 2025 CNAME format includes a per-tenant character only Exchange knows,
# so we must read Selector1CNAME/Selector2CNAME from here, publish them, THEN enable.
#
# ! pwsh ~/services/apps/smtp-relay/scripts/enable-dkim.ps1
# Sign in as a tenant admin. Paste the CNAME values back so DNS can be updated.
param(
[string]$Domain = 'ddupan.top'
)
Import-Module ExchangeOnlineManagement
Connect-ExchangeOnline -Device -ShowBanner:$false
# Create directly (disabled). Don't pre-check with Get — on a missing domain it only
# WARNS (not errors), which defeats try/catch. Catch the "already exists" case instead.
try {
New-DkimSigningConfig -DomainName $Domain -KeySize 2048 -Enabled $false -ErrorAction Stop | Out-Null
Write-Host "Created DKIM config for $Domain (disabled)."
} catch {
if ("$($_.Exception.Message)" -match 'already exist') {
Write-Host "DKIM config already exists — continuing."
} else {
Write-Host "New-DkimSigningConfig failed: $($_.Exception.Message)"
Disconnect-ExchangeOnline -Confirm:$false
return
}
}
Write-Host "`n== PUBLISH THESE EXACT CNAME TARGETS (paste them back) =="
Get-DkimSigningConfig -Identity $Domain | Format-List Name, Enabled, Status, Selector1CNAME, Selector2CNAME
Write-Host "After the CNAMEs are updated + resolving, run scripts/enable-dkim-finish.ps1 to enable."
Disconnect-ExchangeOnline -Confirm:$false