APRS messages are stored for 14 days. It is possible to search using wildcards (*?) after a prefix.
2024-05-23 18:11:23 EDT: N4JTK>WB4ULT: Good evening Rick - Hope you are doing well. Can you check me in? 2024-05-23 18:12:35 EDT: WB4ULT>N4JTK: Thanks John, doing a little better 2024-05-30 18:24:31 EDT: N4JTK>WB4ULT: Greetings - Please check me in. No Echolink Net tonight. Both+ 2024-05-30 18:24:32 EDT: N4JTK>WB4ULT: Bob's not available. 2024-05-30 18:25:13 EDT: WB4ULT>N4JTK: Thanks John