421 too many smtp connections
Hola estoy viendo este error 421 - too many smtp connections, please try again later connection closed by foreign host ahora bien, yo uso exim4 y creo que el problema esta en aumentar las conexiones.. Alguno de ustedes me podria decir donde en exim4 puedo cambiar esto.. gracias gus -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: 421 too many smtp connections
El lun, 05-06-2006 a las 17:01 -0300, gus escribió: Hola estoy viendo este error 421 - too many smtp connections, please try again later connection closed by foreign host ahora bien, yo uso exim4 y creo que el problema esta en aumentar las conexiones.. Alguno de ustedes me podria decir donde en exim4 puedo cambiar esto.. gracias gus Leiste la documentacion?? Si por algo se destaca exim es por su excelente documentación La respuesta a tu pregunta esta en las faq -- Angel Claudio Alvarez Usuario Linux Registrado 143466 GPG Public Key en http://pgp.mit.edu key fingerprint = 3AED D95B 7E2D E954 61C8 F505 1884 473C FC8C 8AC4 signature.asc Description: Esta parte del mensaje está firmada digitalmente
SMTP Connections
Hi all, I'm trying get a Debian box to act as a mail server. I'm using exim. Presently, it receives mail, but it won't send mail, at least to the destinations I've been using for testing. When it tries to connect to a mail server, the connection is either refused or just hangs and then times out. Just to test, I also tried using telnet to connect to port 25 of the same hosts. Same thing: either telnet: Unable to connect to remote host: Connection refused or nothing. The weird thing is: I think I had it working earlier yesterday, and since then, I've hardly changed anything...just some rewriting and aliasing configuration in exim. On what basis could a mail server decide which hosts it is going to allow to connect to it? Thanks for your help. -- David Steinberg [EMAIL PROTECTED]
Re: SMTP Connections
also sprach David Steinberg (on Thu, 03 May 2001 10:05:44AM -0700): When it tries to connect to a mail server, the connection is either refused or just hangs and then times out. Just to test, I also tried using telnet to connect to port 25 of the same hosts. Same thing: either telnet: Unable to connect to remote host: Connection refused or nothing. are you behind a firewall? try to telnet to port 25 of mail.madduck.net - if you get a refusal, then you have a problem on your side and i think you might have a firewall that blocks outgoing 25 connects (which is not uncommon). the easy way out is to use your commpany's smtp relay server as the smtp forwarding host (relay) for exim. On what basis could a mail server decide which hosts it is going to allow to connect to it? ip addresses mostly... martin; (greetings from the heart of the sun.) \ echo mailto: !#^.*|tr * mailto:; [EMAIL PROTECTED] -- there's an old proverb that says just about whatever you want it to.
Re: SMTP Connections
On Thu, 3 May 2001, MaD dUCK wrote: are you behind a firewall? Yes, but I don't think it blocks outgoing 25/tcp connects. try to telnet to port 25 of mail.madduck.net - if you get a refusal, then you have a problem on your side and i think you might have a firewall that blocks outgoing 25 connects (which is not uncommon). Trying 130.58.82.235... Connected to mail.madduck.net. Escape character is '^]'. 220 diamond.madduck.net ESMTP MAIL FROM:[EMAIL PROTECTED] 250 Ok On what basis could a mail server decide which hosts it is going to allow to connect to it? ip addresses mostly... Could you expand on this? How would a mail server decide which IP addresses to block? Why would it suddenly decide that it doesn't like mine? :) -- David Steinberg [EMAIL PROTECTED]
Re: SMTP Connections
also sprach David Steinberg (on Thu, 03 May 2001 11:09:37AM -0700): are you behind a firewall? Yes, but I don't think it blocks outgoing 25/tcp connects. no it doesn't. i saw your connects... Could you expand on this? How would a mail server decide which IP addresses to block? Why would it suddenly decide that it doesn't like mine? :) i really don't think that would be the problem. it could be that your home.com ip address is listed on mail-abuse.org, but my server should have caught that already. what servers have you tried so far? a mail server will block certain ips if they are commonly used by spammers - that's what mail-abuse.org is for. otherwise, i see no point in blocking connects... martin; (greetings from the heart of the sun.) \ echo mailto: !#^.*|tr * mailto:; [EMAIL PROTECTED] -- a rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral. -- antoine de saint-exupery
Re: SMTP Connections
On what basis could a mail server decide which hosts it is going to allow to connect to it? ip addresses mostly... Could you expand on this? How would a mail server decide which IP addresses to block? Why would it suddenly decide that it doesn't like mine? :) Mail servers can be set up to check the anti-spam group's (RBL ?? or is it RBS ??) database for bad IP addresses. They maintain a list of mail servers that they have either found to be open or allow relaying. If your IP address has been flagged, this could be a reason. Regards Hall
Re: SMTP Connections
also sprach Hall Stevenson (on Thu, 03 May 2001 02:19:43PM -0400): If your IP address has been flagged, this could be a reason. but the server i made him try uses RBL extensively and did not refuse him. i think he's suffering more a client side problem... but i am a postfix expert, no clue about exim... martin; (greetings from the heart of the sun.) \ echo mailto: !#^.*|tr * mailto:; [EMAIL PROTECTED] -- imagine if every thursday your shoes exploded if you tied them the usual way. this happens to us all the time with computers, and nobody thinks of complaining. -- jeff raskin
Re: SMTP Connections
On Thu, 3 May 2001, MaD dUCK wrote: but the server i made him try uses RBL extensively and did not refuse him. i think he's suffering more a client side problem... but i am a postfix expert, no clue about exim... You're right! It was my configuration of exim. I had it doing hostname lookups wrong. It wasn't looking up MX records because I had made it use gethostbyname(), instead of a direct DNS lookup. As a result, it was trying to connect to hosts that didn't accept their own mail. It's all fixed now. Thanks so much for your help. -- David Steinberg [EMAIL PROTECTED]
