Improve logging in ExtendedEmailPublisher

[Vaibhav34-2006]

While exploring the email-ext-plugin codebase, I noticed that there are
places where exceptions are printed directly instead of using Jenkins
logging APIs.

I would like to replace these with proper LOGGER usage to improve
log consistency and maintainability.

Please let me know if this approach is acceptable before I proceed.

[harshavardhanreddy06]

Hi! I'd like to take this on. I've identified the places in ExtendedEmailPublisher.java
where exceptions are printed directly instead of using the Jenkins LOGGER API.
I'll replace them with proper LOGGER.log() calls following Jenkins conventions.
Will submit a PR shortly — any specific logging format preferences?

[Vaibhav34-2006]

Thanks for picking this up!

That approach sounds good to me. Replacing direct exception prints with proper LOGGER usage will definitely improve consistency.

No specific logging format preference from my side — following existing Jenkins logging conventions should be fine.

Looking forward to the PR 👍