careful in the number of mailing lists you subscribe, since they can quickly fill your daily inbox.
1) Voluntary subscriptions:
Rather than subscribing a service which sends you mails everyday, you should use the RSS feed wherever possible. This will keep your inbox lean and you will check the RSS feed, whenever the time is suitable for you.
2) Someone else put you on the list:
In companies your are inevitably part of mailing lists that others create - sometimes even without your permission. You should be very selective here and in case it does not add value to you ask the sender to remove your name from the distribution list.
This is especially true when you are changing role or responsibility in your company. It might feel uncomfortable in the beginning but unsubscribing the mailing lists related to your previous role is a good step to let go and to focus on your new responsibility.
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