ruthst00 opened a new pull request, #16452: URL: https://github.com/apache/grails-core/pull/16452
## Description <!-- Describe your change and the problem it solves. Link to the related issue(s) if they exist. --> ### Changes Made **`grails-mail/src/main/groovy/grails/plugins/mail/MailConfigurationProperties.groovy`** - Added two new configuration properties: `overrideToAddress` and `overrideFromAddress` **`grails-mail/src/main/groovy/grails/plugins/mail/MailMessageBuilder.groovy`** - Added `overrideToAddress` and `overrideFromAddress` fields - Updated constructor: `overrideToAddress` = `properties.overrideToAddress ?: overrideAddress` (falls back to `overrideAddress` for backward compatibility), same for `overrideFromAddress` - Updated `defaultFrom` and `defaultTo` to use the new specific override fields - Updated `toDestinationAddresses()` to use `overrideToAddress` instead of `overrideAddress` - Updated `from()` DSL method to apply `overrideFromAddress` when set **`grails-mail/src/test/groovy/grails/plugins/mail/MailMessageBuilderSpec.groovy`** - Added 8 new test cases covering: `overrideAddress` backward compatibility, `overrideToAddress`-only, `overrideFromAddress`-only, precedence of specific overrides over `overrideAddress`, multiple recipients with `overrideToAddress`, and default address behavior with the new properties ### Behavior - `grails.mail.overrideAddress` — unchanged, still overrides both to and from (backward compatible) - `grails.mail.overrideToAddress` — overrides only recipient addresses; takes precedence over `overrideAddress` for "to" - `grails.mail.overrideFromAddress` — overrides only sender address; takes precedence over `overrideAddress` for "from" All 23 tests pass and all violation reports (Checkstyle, CodeNarc, PMD, SpotBugs, Repository Conventions) are clean. Fixes [#15933](https://github.com/apache/grails-core/issues/15933) Generated with [Claude Sonnet 4.6](https://www.anthropic.com/claude/sonnet) via [Cline API Provider](https://cline.bot/) ## Contributor Checklist Please review the following checklist before submitting your pull request. Pull requests that do not meet these requirements may be closed without review. ### Issue and Scope - [X] This PR is linked to an existing issue that has been **acknowledged or approved** by the project team. If no approved issue exists, please give background on why this change is necessary. Tickets are preferred for release change log history. - [X] This PR addresses the **complete scope** of the linked issue. Partial implementations or unfinished work should not be submitted for review. - [X] This PR contains a **single, focused change**. 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