Setting Up User Exits › Mail Exit › Program and Link the Exit

Program and Link the Exit

You must program the exit as reentrant and link it into the load library with module name TPXUMAIL.

Important! In developing your exit, remember that after closing a QSAM DCB the buffer pool is not released and will be reused only if the same copy of the DCB is reopened. Continuously opening a fresh copy of a DCB without the use of FREEPOOL at close will exhaust user memory space. Similarly, if you reuse a DCB with different attributes, a FREEPOOL is recommended.