ERROR! TIF file does not exist

If you get a similar output in Asterisk CLI:

mor_fax2email:
mor_fax2email: MOR Fax2Email AGI script started.
mor_fax2email: Successfully connected to database.
mor_fax2email: from sender: , fax file: 1311285609.5, faxsender: 311043455xx, fax_id :14, pdf file: /var/spool/asterisk/faxes/1311285609.5.pdf, tif file: /var/spool/asterisk/faxes/1311285609.5.tif
[2011-07-22 00:01:52] NOTICE[3316]: app_mor_debug.c:168 process_call_details: RTPAUDIOQOS: ssrc=655552979;themssrc=428650528;lp=0;rxjitter=0.006493;rxcount=4511;txjitter=0.002304;txcount=541;rlp=0;rtt=0.020000
[2011-07-22 00:01:52] NOTICE[3316]: app_mor_debug.c:186 process_call_details: PDD:
[2011-07-22 00:01:52] NOTICE[3316]: app_mor.c:2407 mor_acct_stop: Reseller's balance will be deducted by: 0.000000, and frozen balance by: 0.000000.
mor_fax2email: ERROR! TIF file does not exist!
-- AGI Script mor_fax2email completed, returning 0
-- Executing [h@mor_fax2email:2] Hangup("Local/910007@mor_local-1f39,2", "") in new stack
== Spawn extension (mor_fax2email, h, 2) exited non-zero on 'Local/91000x@mor_local-1f39,2'

that means that FAX was not received and you should search for the problem in the sending side.