Error message

We use Lotus Notes 4.5 on an server with WindowsNT 4.5.
For some months everything works good and suddenly for a reason I don't know the system don't receive or send mail.
After stopping and restarting the notes server everything work again.
How can I avoid this problem ?
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is this internal mail, or mail routed through SMTP ?

do you get any error messages in the log  ?
martinedAuthor Commented:
The mail is routed through SMTP.

Just before the problem occurs the administrator gets the following message in his mailbox :
message fatal error error message ID 003604A4 unable to create undeliverable message notification because of address error in envelope from dead message will be found in the inbound work queue
Is it happening on any particular email id or any id ?????
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martinedAuthor Commented:
It's happening on any id.
does it happen on any particular incoming/outgoing e-mail id ????
martinedAuthor Commented:
It doesn't happen on a particular ID.
It can be that the heap or buffer is full.  It happens all the time.  Next time it happens try to restart the SMTPMTA, without restarting the server, sometimes it helps.  To quit it, type this on the server console: TELL SMTPMTA QUIT
then restart: LOAD SMTPMTA
I'm sure it doesnt have anything to do with the message u recieve coz this is only some dead mail, maybe coz the return address is not right.

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