Re: Timeout of SMTP servers
On Jan 23, 2010, at 4:24 PM, Sahil Tandon wrote: On Fri, 22 Jan 2010, Martijn de Munnik wrote: RFC2821 section 4.5.3.2 Timeouts reads An SMTP server SHOULD have a timeout of at least 5 minutes while it is awaiting the next command from the sender. The key word is SHOULD, as opposed to MUST. SHOULD equals MUST unless you have a really good reason. I'm trying to figure out if somebody on the list knows a really good reason. When I try to connect to an one.com mx (mx-cluster1.one.com or mx-cluster2.one.com) I notice they will close the connection after about 3 seconds. Why do they do this? Is anybody else using such short timeouts? That timeout does seem foolishly short, but they might have legitimate reasons that are best explained by ... them! Try pinging their postmaster. -- Sahil Tandon sa...@tandon.net
Re: Timeout of SMTP servers
Martijn de Munnik: On Jan 23, 2010, at 4:24 PM, Sahil Tandon wrote: On Fri, 22 Jan 2010, Martijn de Munnik wrote: RFC2821 section 4.5.3.2 Timeouts reads An SMTP server SHOULD have a timeout of at least 5 minutes while it is awaiting the next command from the sender. The key word is SHOULD, as opposed to MUST. SHOULD equals MUST unless you have a really good reason. I'm trying to figure out if somebody on the list knows a really good reason. Ask THEIR postmaster. Wietse
Re: Timeout of SMTP servers
On Sat, 23 Jan 2010, Martijn de Munnik wrote: On Jan 23, 2010, at 4:24 PM, Sahil Tandon wrote: On Fri, 22 Jan 2010, Martijn de Munnik wrote: RFC2821 section 4.5.3.2 Timeouts reads An SMTP server SHOULD have a timeout of at least 5 minutes while it is awaiting the next command from the sender. The key word is SHOULD, as opposed to MUST. SHOULD equals MUST unless you have a really good reason. I'm trying to figure out if somebody on the list knows a really good reason. *yawn*. Perhaps you will benefit from repetition: ask their postmaster, as I advised in my initial response and others have since echoed. -- Sahil Tandon sa...@tandon.net
Re: Timeout of SMTP servers
On Jan 23, 2010, at 9:17, Martijn de Munnik mart...@youngguns.nl wrote: SHOULD equals MUST unless you have a really good reason. I'm trying to figure out if somebody on the list knows a really good reason. There is no really good reason for a 3 second timeout in a public server. There are really good reason for having a timeout less than 5 minutes though.