smtp: add tracing feature

Add `smtp` as tracing feature, use CURL_TRC_SMTP() in code to
trace operations.

Closes #14531
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Stefan Eissing 2024-08-13 13:49:07 +02:00 committed by Daniel Stenberg
parent 8058bbae52
commit 1c42ea4066
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4 changed files with 61 additions and 14 deletions

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@ -105,6 +105,10 @@ Tracing of DNS-over-HTTP operations to resolve hostnames.
Traces reading of upload data from the application in order to send it to the server.
## `smtp`
Tracing of SMTP operations when this protocol is enabled in your build.
## `write`
Traces writing of download data, received from the server, to the application.