Exceptions, alarms, and limits
05RECURRENCE-ID addresses an occurrence; VALARM describes a reminder rather than arbitrary executable code.
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Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 3.8.4.4 ↗
RFC 5545 · § 3.8.4.4EXAMPLE
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Handle alarms safely
A reminder is processed with user permissions and safe resource handling.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
An exception identifies the original scheduled occurrence with RECURRENCE-ID.
- An exception identifies the original scheduled occurrence with RECURRENCE-ID.
- VALARM has its own required properties and trigger semantics.
- Calendar data is untrusted input; access control and safe handling remain application responsibilities.
Examples are illustrative. Consult the linked RFC and its errata for implementation details.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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