Add overwrite parameter to IMAP hook to prevent silent file overwrites #65870

[kada2004]

Hi maintainers, this is my first contribution to the project , so I may have missed something.
I thought this issue would be a good first one to work on, and I’m happy to make any changes based on your feedback. Thanks. Description down

When download mail attachments is called and multiple emails shared and attachments with the same filename, the existing file is silent overwritten.

This adds an overwrittten paramter ( default to True, preserving the current behavior). When set to False, duplicate filenames are renamed with a numeric suffix( Example. report_1.xlsx , report_2.xlsx) instead of overwriting).

• closes: IMAP hook silently overwrites attachments with identical filenames #65870
• related: #ISSUE
• IMAP hook silently overwrites attachments with identical filenames #65870

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[boring-cyborg]

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[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.