Handle blank addresses in CC and BCC lists, as these cause a Sendgrid error#137

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psyonara wants to merge 3 commits intosklarsa:masterfrom

psyonara:fix-empty-addresses-for-cc

Commits on Mar 26, 2025

Handle blank addresses in CC and BCC, and add a check to the test.
psyonara
committed
Remove blank check from TO, since this should raise an exception from Sendgrid.
psyonara
committed
Fix line length being exceeded on previous changes.
psyonara
committed