Portuguese Carriers do not allow Shortcode Sender IDs. We strongly recommend the use of Numeric Senders in International format or Alphanumeric Senders for all traffic to Portugal to bypass this blocking.
Please note that operators are now filtering on Russian numeric senders throughout Portugal. We therefore strongly advise against using any Russian senders into Portugal as messages are extremely likely to be filtered.
Update February 27th 2014:
Please be advised that Sender ID's listed below have been blocked locally, therefore any messages sent using these Sender ID's will likely be blocked.
If you have a valid contract to use any of the Sender ID's listed below, please contact email@example.com and we will work with our suppliers to assist you.
There are no additional content restrictions beyond those in our Acceptable Use Policy
Other features/restrictions of note:
Handset delivery receipts are supported.