#30 MUA timing out on sending SMTP

[Anonymous]

Serious Issue !

Workspace: W2k, gpgrelay 0.959

Issue: MUA timing out on sending (signed) mail using an
SMTP relay

Description: Certain MUAs (e.g. Outlook) time out when
sending large mails over gpgrelay (smtp). Follwing
happens:

1. MUA initiates smtp to local relay, sending the
complete mail.

2. Gpgrelay keeps the local connection open until the
mail is completely send.

3. Sending of mail needs a long time over internet
connection ( > MUA timeout value, e.g. one minute).

4. MUA thinks of a timeout and retries

5. gpgrelay continues sending the first mail (!!)

6. MUA gets loaded with additional mails (retries) which
makes thinks even worse

--> MUA thinks the mail is not sent (time out)
--> sender thinks mail ist not sent, tho' all retries will fail
for the given reason
--> but gpgrelay sent the mail
--> mail will be sent multiple times
--> receiver is annoyed by receiving 20MB-Attachments
several times

Workaround: Set MUA timeout to a high value. This does
not solve the problem, but can help a little.

Fix: Is it possible to send a "keepalive" to MUA, so it
won't time out ??

c/o: markus2@no-iq.de