48 lines
1.0 KiB
Markdown
48 lines
1.0 KiB
Markdown
# Introduction
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`BLP` is a command introduced with [MSNP2](../versions/msnp2.md).
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It is a Notification Server command, without either a request or response payload.
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It modifies if messages sent to you by users not on your Allow List (AL) are allowed to be received.
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# Client/Request
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`BLP TrID [ AL | BL ]`
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# Server/Response
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`BLP TrID {list-version} [ AL | BL ]`
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Where `list-version` is the new List Version. Removed since [MSNP10](../versions/msnp10.md) in `ABCHMigrated: 1` mode.
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# Examples
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## Setting to AL (Allow messages by default)
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```
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C: BLP 1 AL
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S: BLP 1 256 AL
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```
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## Setting to BL (Block messages by default)
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```
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C: BLP 2 BL
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S: BLP 2 257 BL
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```
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## Already in that mode
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```
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C: BLP 3 AL
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S: BLP 3 258 AL
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C: BLP 4 AL
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S: 218 4
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```
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## Invalid argument
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*NOTE: This is an assumption. The actual error code here is unknown.
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It may also lead to an Instant Disconnection.*
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```
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C: BLP 5 CL
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S: 201 5
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```
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# Known changes
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* [MSNP10](../versions/msnp10.md) and higher: List Versions are dropped in `ABCHMigrated: 1` mode.
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