Score:0

Too many connections in Exim4

bf flag
Tom

Some users have complained that they are unable to send emails to us. In their logs appears the message "Too many concurrent SMTP connections; please try again later.".

Checking our logs, we noticed several messages with the error below:

2022-10-18 11:01:40 Connection from [X.X.X.X] refused: too many connections
2022-10-18 11:01:40 Connection from [X.X.X.X] refused: too many connections
2022-10-18 11:01:40 Connection from [X.X.X.X] refused: too many connections
2022-10-18 11:01:40 Connection from [X.X.X.X] refused: too many connections

Does this message mean that the IP in question made too many connections, or that at the time it tried to connect there were already enough connections?

I'm trying to check the connections limit on my Exim, but inside the /etc/exim4 folder I can't find any .conf file that has the smtp_accept_max property in its content.

If I create more Exim servers to distribute the load, can that solve the problem?

Score:0
ph flag

Try to find file by content

find . -type f -exec grep "smtp_accept_max" '{}' \; -print
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