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Implications of removing session size limit from SMTP Virtual Server


How to limit SMTP delivery to hourly batchesSMTP 552 4.3.1 Session size exceeds fixed maximum session sizeIIS6 Virtual SMTP server isn't coming back up automatically after a system restartHow to determine which scripts are sending mail via Default SMTP Virtual ServerExchange SMTP address limitMTA handling of too large emailsExchange 2013 SMTP reply error not being sentWhat's the point of an SMTP session size limit?SMTP session transcript explanationIIS6 SMTP server sending blank 'From' addresses within bounce messages






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1















I am running into an issue in one of our applications whereby our SMTP server rejects mail:



System.Net.Mail.SmtpException: Exceeded storage allocation. The server response was: 4.3.1 Session size exceeds fixed maximum session size
at System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
at System.Net.Mail.DataStopCommand.Send(SmtpConnection conn)
at System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
at System.Net.ClosableStream.Close()
at System.Net.Mail.MailWriter.Close()
at System.Net.Mail.SmtpClient.Send(MailMessage message)


I've traced this back to the session size limit in SMTP Virtual Server. It's currently set to 10240kb, but before I increase it I'd like to know the implications of raising the limit or removing it entirely. The only clients that send through the server are (should be) under the control of my organisation.



enter image description here










share|improve this question




























    1















    I am running into an issue in one of our applications whereby our SMTP server rejects mail:



    System.Net.Mail.SmtpException: Exceeded storage allocation. The server response was: 4.3.1 Session size exceeds fixed maximum session size
    at System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
    at System.Net.Mail.DataStopCommand.Send(SmtpConnection conn)
    at System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
    at System.Net.ClosableStream.Close()
    at System.Net.Mail.MailWriter.Close()
    at System.Net.Mail.SmtpClient.Send(MailMessage message)


    I've traced this back to the session size limit in SMTP Virtual Server. It's currently set to 10240kb, but before I increase it I'd like to know the implications of raising the limit or removing it entirely. The only clients that send through the server are (should be) under the control of my organisation.



    enter image description here










    share|improve this question
























      1












      1








      1








      I am running into an issue in one of our applications whereby our SMTP server rejects mail:



      System.Net.Mail.SmtpException: Exceeded storage allocation. The server response was: 4.3.1 Session size exceeds fixed maximum session size
      at System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
      at System.Net.Mail.DataStopCommand.Send(SmtpConnection conn)
      at System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
      at System.Net.ClosableStream.Close()
      at System.Net.Mail.MailWriter.Close()
      at System.Net.Mail.SmtpClient.Send(MailMessage message)


      I've traced this back to the session size limit in SMTP Virtual Server. It's currently set to 10240kb, but before I increase it I'd like to know the implications of raising the limit or removing it entirely. The only clients that send through the server are (should be) under the control of my organisation.



      enter image description here










      share|improve this question














      I am running into an issue in one of our applications whereby our SMTP server rejects mail:



      System.Net.Mail.SmtpException: Exceeded storage allocation. The server response was: 4.3.1 Session size exceeds fixed maximum session size
      at System.Net.Mail.DataStopCommand.CheckResponse(SmtpStatusCode statusCode, String serverResponse)
      at System.Net.Mail.DataStopCommand.Send(SmtpConnection conn)
      at System.Net.Mail.SmtpConnection.OnClose(Object sender, EventArgs args)
      at System.Net.ClosableStream.Close()
      at System.Net.Mail.MailWriter.Close()
      at System.Net.Mail.SmtpClient.Send(MailMessage message)


      I've traced this back to the session size limit in SMTP Virtual Server. It's currently set to 10240kb, but before I increase it I'd like to know the implications of raising the limit or removing it entirely. The only clients that send through the server are (should be) under the control of my organisation.



      enter image description here







      smtp iis-6






      share|improve this question













      share|improve this question











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      share|improve this question










      asked Jul 7 '15 at 14:43









      AlexFoxGillAlexFoxGill

      1063




      1063




















          2 Answers
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          0














          The implication is that more data will be allowed per session (connection), based on whatever you set the value to. So, in concert with the other limits, this determines how much total data (the sum of all messages sent per session) is allowed per session (connection).






          share|improve this answer






























            0














            To add to the previous answer, the SMTP service process will also potentially consume more memory if it allows to have more data sent in the same session. This is especially true if your SMTP server is setup to "store and forward" (receives and stores the message locally, sends a 200 code back to the sending SMTP server and then opens another connection to the destination SMTP server)






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              2 Answers
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              2 Answers
              2






              active

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              active

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              active

              oldest

              votes









              0














              The implication is that more data will be allowed per session (connection), based on whatever you set the value to. So, in concert with the other limits, this determines how much total data (the sum of all messages sent per session) is allowed per session (connection).






              share|improve this answer



























                0














                The implication is that more data will be allowed per session (connection), based on whatever you set the value to. So, in concert with the other limits, this determines how much total data (the sum of all messages sent per session) is allowed per session (connection).






                share|improve this answer

























                  0












                  0








                  0







                  The implication is that more data will be allowed per session (connection), based on whatever you set the value to. So, in concert with the other limits, this determines how much total data (the sum of all messages sent per session) is allowed per session (connection).






                  share|improve this answer













                  The implication is that more data will be allowed per session (connection), based on whatever you set the value to. So, in concert with the other limits, this determines how much total data (the sum of all messages sent per session) is allowed per session (connection).







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Jul 7 '15 at 16:29









                  joeqwertyjoeqwerty

                  96.8k465149




                  96.8k465149























                      0














                      To add to the previous answer, the SMTP service process will also potentially consume more memory if it allows to have more data sent in the same session. This is especially true if your SMTP server is setup to "store and forward" (receives and stores the message locally, sends a 200 code back to the sending SMTP server and then opens another connection to the destination SMTP server)






                      share|improve this answer



























                        0














                        To add to the previous answer, the SMTP service process will also potentially consume more memory if it allows to have more data sent in the same session. This is especially true if your SMTP server is setup to "store and forward" (receives and stores the message locally, sends a 200 code back to the sending SMTP server and then opens another connection to the destination SMTP server)






                        share|improve this answer

























                          0












                          0








                          0







                          To add to the previous answer, the SMTP service process will also potentially consume more memory if it allows to have more data sent in the same session. This is especially true if your SMTP server is setup to "store and forward" (receives and stores the message locally, sends a 200 code back to the sending SMTP server and then opens another connection to the destination SMTP server)






                          share|improve this answer













                          To add to the previous answer, the SMTP service process will also potentially consume more memory if it allows to have more data sent in the same session. This is especially true if your SMTP server is setup to "store and forward" (receives and stores the message locally, sends a 200 code back to the sending SMTP server and then opens another connection to the destination SMTP server)







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered Apr 21 at 18:18









                          Benoit MalenfantBenoit Malenfant

                          83




                          83



























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