feat. add acme agreement and email to .env.

[nikescar]

Thank you for maintaining great solution.
I found solution to acme certificate issueing error.

docker shows followin error

chatmail  | [421840.848602] bash[432]: --> Starting operation: Reconcile certificates for: chat.example.com, mta-sts.chat.example.com, www.chat.example.com
chatmail  | [421841.741899] bash[432]:     [@local] 20260713064435 [DEBUG] acmetool.storageops: Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): best certificate satisfying is <nil>, err=Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): no certificate satisfies this target
chatmail  | [421841.742113] bash[432]:     [@local] 20260713064435 [DEBUG] acmetool.storageops: Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): requesting certificate
chatmail  | [421841.742209] bash[432]:     [@local] 20260713064436 [INFO] acme.interactor: interaction auto-responder couldn't give a canned response: unknown unique ID, cannot respond: "acme-agreement:https://letsencrypt.org/documents/LE-SA-v1.8-July-06-2026.pdf"
chatmail  | [421841.742321] bash[432]:     [@local] 20260713064436 [ERROR] acmetool.storageops: Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): failed to request certificate: cannot prompt the user: currently non-interactive; try running without --batch flag
chatmail  | [421841.742404] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: done processing targets, reconciliation complete, 1 errors occurred
chatmail  | [421841.742494] bash[432]:     [@local] 20260713064436 [ERROR] acmetool.storageops: error while processing targets: the following errors occurred:
chatmail  | [421841.742572] bash[432]:     [@local] error satisfying Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): cannot prompt the user: currently non-interactive; try running without --batch flag
chatmail  | [421841.742681] bash[432]:     [@local] 20260713064436 [ERROR] acmetool.storageops: failed to reconcile: the following errors occurred:
chatmail  | [421841.742757] bash[432]:     [@local] error satisfying Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): cannot prompt the user: currently non-interactive; try running without --batch flag
chatmail  | [421841.742848] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: disjoint hostname mapping: "www.chat.example.com" -> Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0)
chatmail  | [421841.742936] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: disjoint hostname mapping: "chat.example.com" -> Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0)
chatmail  | [421841.743023] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: disjoint hostname mapping: "mta-sts.chat.example.com" -> Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0)
chatmail  | [421841.743113] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: could not find certificate satisfying Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): no certificate satisfies this target
chatmail  | [421841.743300] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: could not find certificate satisfying Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): no certificate satisfies this target
chatmail  | [421841.743402] bash[432]:     [@local] 20260713064436 [DEBUG] acmetool.storageops: could not find certificate satisfying Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): no certificate satisfies this target
chatmail  | [421841.743522] bash[432]:     [@local] 20260713064436 [CRITICAL] acmetool: fatal: reconcile: the following errors occurred:
chatmail  | [421841.743626] bash[432]:     [@local] error satisfying Target(chat.example.com,mta-sts.chat.example.com,www.chat.example.com;https://acme-v02.api.letsencrypt.org/directory;0): cannot prompt the user: currently non-interactive; try running without --batch flag
chatmail  | [421841.744116] bash[432]:     [@local] Error: executed 0 commands
chatmail  | [421841.745969] bash[432]: --> Disconnecting from hosts...
chatmail  | [421841.764413] bash[432]: --> pyinfra error: No hosts remaining!
chatmail  | [421842.001657] bash[376]: Deploy failed
chatmail  | [FAILED] Failed to start chatmail-...m - Run container setup commands.

to fix this, add email in .env file

MAIL_DOMAIN=chat.example.com
ACME_EMAIL=admin@example.com

and run docker compose up as usual would fix the error.