CONFIGURING SMTP PARAMETERS
The SMTPC module incorporates SMTP to initiate connection requests and send messages to peers on the Internet. This screen allows you to configure the different SMTP parameters used by SMTPC.

To configure, do the following:

  1. Enter the SMTP Ports:
  2. Tick the check boxes of the ESMTP support features you wish to activate:
  3. Configure the Delayed mail Notification parameters:
  4. Specify the SMTP Timeout Tunings:

    • SMTPD
      The timeout value (in minutes) that SMTPD waits on an open socket. This value should not be changed, but if unusual delays are being experienced, this can be adjusted to stop SMTPD from timing out. The default value is 5 minutes.
    • SMTPC Initial
      The amount of time (in minutes) that SMTPC waits for the initial contact of a remote host to be completed. The default value is 5 minutes.
    • SMTPC Helo
      This indicates the period (in minutes) that SMTPC will wait for the remote system to respond to the HELO command. The default value is 5 minutes.
    • SMTPC Mail
      The period (in minutes) that SMTPC will wait for the remote system to respond to the MAIL FROM command in the field . The default value is 5 minutes.
    • SMTPC Rcpt
      This refers to the period (in minutes) that SMTPC will wait for the remote system to respond to the RCPT TO command. The default value is 5 minutes.
    • SMTPC Data
      The period (in minutes) that SMTPC will wait for the remote system to respond to the DATA command in the field. The default value is 5 minutes.
    • SMTPC Data Block
      The period (in minutes) that SMTPC will wait for the remote system to respond and acknowledge the individual buffer transmission of message data. It can also be defined as the length of time wherein SMTPC waits between writes to the Winsock stack before it considers the remote system "dead". The default value is 5 minutes.
    • SMTPC Data End
      The period (in minutes) that SMTPC will wait for the remote system to respond to the DATA phase wrap up represented by the dot (.) command. The default value is 5 minutes.
    • SMTPC Quit
      The period (in minutes) that SMTPC will wait for the remote system to respond to the QUIT command. The default value is 5 minutes.

  5. Indicate the Data Buffer Size, which refers to the size (in bytes) of the data buffer used by SMTP programs to read data from the Internet. If the machine uses disk caching, set this option to the size of the read ahead buffer. The default value is 4096 (4K); the maximum buffer size is 32768 (32K).
  6. Tick the check box of the Set 554 SMTP error as temporary check box. RFC821 on SMTP is not clear as to whether error 554 transaction failed during the DATA phase should be regarded as a permanent error. Usually 5xx errors are permanent, but some SMTP servers return 554 errors as temporary errors. Internet Exchange takes the conservative approach and retries such message later. If this option is set to NO, then such messages will be bounced instead or re-sent to their intended recipients. The default is YES.
  7. Click the Submit button to implement the settings.