feat: provide clear errors for missing required envs
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6 changed files with 146 additions and 27 deletions
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@ -42,6 +42,8 @@ When an ENV variable is set, the corresponding Settings field is read-only in th
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| Sender name | `MAIL_FROM_NAME` | `smtp_from_name` | Display name in "From" header (default: Mila)|
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| Sender email | `MAIL_FROM_EMAIL` | `smtp_from_email` | Address in "From" header; must match SMTP user on most servers |
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**Boot-time ENV handling:** In `config/runtime.exs`, if `SMTP_PORT` is set but empty or invalid, it is treated as unset and default 587 is used. This avoids startup crashes (e.g. `ArgumentError` from `String.to_integer("")`) when variables are misconfigured in deployment.
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**Important:** On most SMTP servers (e.g. Postfix with strict relay policies) the sender email (`smtp_from_email`) must be the same address as `smtp_username` or an alias that is owned by that account.
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**Settings UI:** The form uses three rows on wide viewports: host, port, TLS/SSL | username, password | sender email, sender name. Content width is limited by the global settings wrapper (see `DESIGN_GUIDELINES.md` §6.4).
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