exim smtp syntax error in mail from Elk Mountain Wyoming

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exim smtp syntax error in mail from Elk Mountain, Wyoming

What are "desires of the flesh"? The error can be detected in the retry rules, and thereby turned into a permanent error if you wish. for providing its computer software that facilitates the management and configuration of Internet web servers. current community chat Unix & Linux Unix & Linux Meta your communities Sign up or If they have more info like this: 2013-08-22 15:02:39 [13788] SMTP call from [SOMEIPADDRESS]:25910 I=[SOMEOTHERIP]:25 dropped: too many syntax or protocol errors Then use this one: Code: if (($lgfile eq $config{CUSTOM1_LOG})

your code is correct but we were missing the [EarlyTalker] part of the line it works now with this or of course with the . Lot of problems for little money! #17 fcbinfo, Oct 24, 2013 quizknows Well-Known Member Joined: Oct 20, 2009 Messages: 937 Likes Received: 52 Trophy Points: 28 cPanel Access Level: DataCenter If your logs look like this: 2013-08-10 10:40:39 SMTP call from [SOMEIPADDRESS]:29048 dropped: too many syntax or protocol errors Use the one I posted above. Fair enough but doesn't explain why works to other recipients. –markmnl Oct 2 '14 at 16:22 What do you mean, "The sending MTA"?

Testing server authentication Exim’s -bh option can be useful for testing server authentication configurations. There is experimental evidence that some MTAs drop the connection after the terminating “.” if they do not like the contents of the message for some reason, in contravention of the However, there are installations that do want to be strict in this area, and to support them, Exim has the helo_verify option. If the value of the AUTH= parameter is “<>”, it is ignored.

Often this is just ignored. If authentication succeeds, the client may optionally make use of the AUTH option on the MAIL command to pass an authenticated sender in subsequent mail transactions. Something like this: iptables -A mychainrule -m string --string "(DONT HAVE UTF8 / OR HAVE INCORRECT CHARS)" --algo bm -j DROP Its boring me! =/ Thanks for help - - - The -bh command line option can be used to run fake SMTP sessions for the purpose of testing verification options. 45.1 Host verification The name of the sending host is looked

Read this: http://www.xs4all.nl/~hanb/documents/quotingguide.html [problem: unable to "send to external e-mail addresses"] > I checked the log and this is what I found: > > 2004-06-10 08:32:30 1BYOjO-0001HA-00 <= root [at] debian-bo It is 1 if some messages were accepted before an error was detected, and 2 if no messages were accepted. <-previousTable of Contentsnext-> Website design by Mike Cardwell, of Cardwell IT If you are setting up a client, and want to know which authentication mechanisms the server supports, you can use Telnet to connect to port 25 (the SMTP port) on the That Exim option in an acl checks to make sure the sender is a "valid" (see exim docs for exactly what that means), and you may need to remove it since

i tried several other small tweaks including this just in case i had to escape the ' Code: if (($lgfile eq $config{CUSTOM1_LOG}) and ($line =~ /^\w+\D\d+\D\d+ \d+\D+\d+\D+\d+ (\d+\.\d+\.\d+\.\d+) got \'non printable Exim (since release 3.20) takes the following pragmatic approach: When an incoming address is aliased to just one child address, in an aliasfile or a smartuser director (but not for forwardfile), If the remote host specified support for the SIZE parameter in its response to EHLO, Exim adds SIZE=nnn to the MAIL command, so an over-large message will cause a message error Stay logged in Log in with Facebook Log in with Twitter Toggle navigation Products Plans & Pricing Partners Support Resources Preview Forums Forums Quick Links Search Forums New Posts Search titles

If the remote host logs this text it can help with tracing what has happened to a message. The client's email software sends mail using single quotation marks ie '[email protected]' she has been using this for a while why is the server only blocking her now? –Lance Davey Oct server_set_id Use: authenticators Type: string† Default: unset When an Exim server successfully authenticates a client, this string is expanded using data from the authentication, and preserved for any incoming messages in If it is set (the default) then the message is rejected.

I also reject envelope senders that do not exist, as that means that NDRs also can't be delivered to the sender, and in 99.5% of the cases a non-existent envelope sender The default value for smtp_max_synprot_errors is 3. For the other authenticators, server_condition can be used as an additional authentication or authorization mechanism that is applied after the other authenticator conditions succeed. However, if the authenticated_sender option is set on the smtp transport, it overrides the authenticated sender that was received with the message. <-previousTable of Contentsnext-> Website design by Mike Cardwell, of

This should prevent the sender from trying to send the message again, but there seem to be plenty of broken mailers out there that do keep on trying, sometimes for days If sender_verify_max_retry_rate is set greater than zero, and the rate of temporary rejection of a specific incoming sender address from a specific host, in units of rejections per hour, exceeds it, Please try the request again. The variables $host and $host_address are available for any string expansions that the client might do.

I found a server under this attack and this was my solution. This will permanantly block any IP's that cause more than two "too many syntax or protocol errors" entries in the log. I took the log data you gave me and used pcregrep with the expression I posted, and it was matching/returning the lines just fine. The host, has 192gb of ram, 16x hdd raid-10, 2x E2670.

Why is absolute zero unattainable? This ensures that, if the failure is really related to the message rather than the recipient (“message too big for this recipient” is a possible example), other messages have a chance This is a defence against broken clients that loop sending bad commands (yes, it has been seen). 6. I am prepared to allow any sender - the firewall blocks external access to exim and I am only using it to send mail from my own daemon.

If you did want to permanantly block any IP's that trip the 'non printable hex data' (i.e. The connections on port 53 shouldn't be related, though your server may be doing reverse DNS lookups for the IPs that are connecting. Try running a command-line exim in address verification mode to see which acl's are executing: exim4 -d -bvs [email protected] exim4 -d -bv [email protected] share|improve this answer edited Oct 23 '15 at instead of the \[ Code: if (($lgfile eq $config{CUSTOM1_LOG}) and ($line =~ /^\w+\D\d+\D\d+ \d+\D+\d+\D+\d+ (\d+\.\d+\.\d+\.\d+) \[EarlyTalker\] got .non printable hex data.

The message is written to the file or pipe preceded by the SMTP commands MAIL and RCPT, and followed by a line containing a single dot. Both of these options default unset. Were you able to resolve it? Then someone says that maybe my server has some virus or malware.

For this you would set sender_verify_hosts_callback = * sender_verify_callback_domains = * On a corporate gateway, to check sender addresses in domain(s) that are `yours' in some sense, but not local (in By default, Exim does not make a log entry when a remote host connects or disconnects (either via the daemon or inetd), unless the disconnection is unexpected. The second and subsequent messages delivered down an existing connection are identified in the main log by the addition of an asterisk after the closing square bracket of the IP address. If the sender_verify_fixup option is set as well as sender_verify, Exim does not reject a message if the sender is invalid, provided it can find a Sender:, Reply-To:, or From: header

Tried all too.