Is it permissible for a boy to talk with his paternal uncle's daughter via Messenger about general topics related to religion or problems, with both parties adhering to ethics and treating each other as siblings, and does this conversation contradict the various fatwas that permit or prohibit that?

A woman's conversation with a non-mahram man is permissible if she is safe from fitnah (temptation) and adheres to the Sharia guidelines, such as lowering her gaze, avoiding seclusion (khalwa), not exceeding the necessary extent in speech, and ensuring the absence of suspicion or lust. One must be cautious about being lenient in speech with non-mahrams, as it may lead to falling into sins. Jurists have stipulated the prohibition of speaking with young women for fear of fitnah. Therefore, a woman should not converse with young men, including her cousins, online about general matters, as this leniency may lead to undesirable consequences. If there is a need, it should be within the bounds of etiquette and morals, and conversation should be limited to women for beneficial purposes in accordance with Sharia guidelines.