Phase 1 (MAILU-CUTOVER.md) upgraded the live stack 1.9→2024.06 and its
lessons land here as pins: every image is the digest running and
verified tonight — webmail under the name 2024.06 actually uses (the
draft's roundcube pin misled a whole hop), antivirus on the upstream
clamav image with the signature DB in its own directory (the mailu-built
image ended at 2.0), and the front trusting the proxy address the live
config actually names. The welcome-mail texts ride along for parity.
TLS_FLAVOR stays letsencrypt deliberately where the live .env says cert:
the cert files are copies whose HAL-era renewal hook died with HAL
(expiry Nov 27); mailu managing its own issuance through the existing
ACME passthrough is the fix, and the files remain on disk as the
fallback flavor if first issuance misbehaves during the window.
jschoubben
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