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I'm getting this error generated by the local SMTP service on Win 2003. (We
use the local service to send emails, by connecting to our outbound mail gateways using a smarthost entry.) The following recipient(s) could not be reached: emailaddress@hotmail.com. on 23/01/2006 4:01 PM The format of the e-mail address is incorrect. Check the address, look up the recipient in the Address Book, or contact the recipient directly to find out the correct address. <server.domain.net #5.1.3> Presumably this is getting dumped because of the trailing dot in the email address. Now I know strictly speaking, the SMTP RFC doesn't permit trailing dots, but I've been assured that mail with a trailing dot can certainly be delivered in practice. Is this right? Is there someway to make the SMTP service send email addresses with a trailing dot? We are MSDN Universal subscribers. Our no spam address is munter@computershare.com
We typically send mail to punters that enter their email addresses online, so
we get a fair few typos. I have an email address validation routine (thanks for asking) but this code doesn't invalidate an address with a trailing dot as our mail server team said they were "OK" in practice. If this isn't the case, I'm happy to be corrected, which is why I posted my original question as it happens. I can modify our code to strip away a trailing dot easily enough, I was just hoping to learn more about the MS SMTP service and why it would refuse to even try to send to a "hotmail.com." address. [quoted text, click to view] "Al Mulnick" wrote:
> "I've been assured that mail with a trailing dot can certainly be delivered > in > practice." > > Really? By whom? And why do you have trailing dots in the first place? How > are you confirming that you have trailing dots? > > Further, what would be the point of that? Is it worth spending time to find > out that some mailer might support this vs. rewriting your app to properly > submit messages? > > > > > > "Muntz" <munter@computershare.com> wrote in message > news:B7A98394-A015-42D4-8E9F-B65CC9EA9207@microsoft.com... > > I'm getting this error generated by the local SMTP service on Win 2003. > > (We > > use the local service to send emails, by connecting to our outbound mail > > gateways using a smarthost entry.) > > > > The following recipient(s) could not be reached: > > > > emailaddress@hotmail.com. on 23/01/2006 4:01 PM > > The format of the e-mail address is incorrect. Check the > > address, look up the recipient in the Address Book, or contact the > > recipient > > directly to find out the correct address. > > <server.domain.net #5.1.3> > > > > Presumably this is getting dumped because of the trailing dot in the email > > address. > > > > Now I know strictly speaking, the SMTP RFC doesn't permit trailing dots, > > but > > I've been assured that mail with a trailing dot can certainly be delivered > > in > > practice. > > > > Is this right? Is there someway to make the SMTP service send email > > addresses with a trailing dot? > > > > We are MSDN Universal subscribers. Our no spam address is > > munter@computershare.com > > > > > >
"I've been assured that mail with a trailing dot can certainly be delivered
in practice." Really? By whom? And why do you have trailing dots in the first place? How are you confirming that you have trailing dots? Further, what would be the point of that? Is it worth spending time to find out that some mailer might support this vs. rewriting your app to properly submit messages? [quoted text, click to view] "Muntz" <munter@computershare.com> wrote in message news:B7A98394-A015-42D4-8E9F-B65CC9EA9207@microsoft.com... > I'm getting this error generated by the local SMTP service on Win 2003. > (We > use the local service to send emails, by connecting to our outbound mail > gateways using a smarthost entry.) > > The following recipient(s) could not be reached: > > emailaddress@hotmail.com. on 23/01/2006 4:01 PM > The format of the e-mail address is incorrect. Check the > address, look up the recipient in the Address Book, or contact the > recipient > directly to find out the correct address. > <server.domain.net #5.1.3> > > Presumably this is getting dumped because of the trailing dot in the email > address. > > Now I know strictly speaking, the SMTP RFC doesn't permit trailing dots, > but > I've been assured that mail with a trailing dot can certainly be delivered > in > practice. > > Is this right? Is there someway to make the SMTP service send email > addresses with a trailing dot? > > We are MSDN Universal subscribers. Our no spam address is > munter@computershare.com > >
On Sun, 29 Jan 2006 20:56:44 -0500, "Al Mulnick"
[quoted text, click to view] <amulnick_No_SPAM@ncDOTrr.com> wrote: >"I've been assured that mail with a trailing dot can certainly be delivered >in >practice." > >Really? By whom? And why do you have trailing dots in the first place? How >are you confirming that you have trailing dots? > >Further, what would be the point of that? Is it worth spending time to find >out that some mailer might support this vs. rewriting your app to properly >submit messages? > A trailing dot is legimate in a URI. It indicates a fully qualified
[quoted text, click to view]
Muntz wrote: > this code doesn't invalidate an address with a trailing > dot as our mail server team said they were "OK" in > practice. If this isn't the case, I'm happy to be corrected... Your mail server team is mistaken. There probably is one MTA implementation in existence somewhere that incorrectly permits it, but that doesn't make it "OK" (nor a good idea if you like for your mail to not bounce). You don't have to take my word for it. Per RFC 1123 ( http://www.faqs.org/rfcs/rfc1123.html ), section 5.2.18: "Errors in formatting or parsing 822 addresses are unfortunately common. This section mentions only the most common errors. A User Agent MUST accept all valid RFC-822 address formats, and MUST NOT generate illegal address syntax. [...] Some systems over-qualify domain names by adding a trailing dot to some or all domain names in addresses or message-ids. This violates RFC-822 syntax." -- Chris Priede
Then use it for URI's. This is SMTP however and you should not assume that
a trailing dot is valid for email syntax. Most MUA's would clear that up for you before you even submitted it. In practice, you may find a MTA that deals with it (Sendmail?) but that doesn't make it right nor does it help in your mission of delivering email to the intended recipients. See the previous poster's comments regarding the RFC perspective on this. Not that that would be final word of course, but since it is used as a guideline I highly suggest going with the guidelines. That I believe, is what the original poster was asking about. Al [quoted text, click to view] "PeterD" <peter2@hipson.net> wrote in message news:u59st1pt0cni75242ru1bm896b0pdk6s26@4ax.com... > On Sun, 29 Jan 2006 20:56:44 -0500, "Al Mulnick" > <amulnick_No_SPAM@ncDOTrr.com> wrote: > >>"I've been assured that mail with a trailing dot can certainly be >>delivered >>in >>practice." >> >>Really? By whom? And why do you have trailing dots in the first place? >>How >>are you confirming that you have trailing dots? >> >>Further, what would be the point of that? Is it worth spending time to >>find >>out that some mailer might support this vs. rewriting your app to properly >>submit messages? >> > > A trailing dot is legimate in a URI. It indicates a fully qualified > URI.
Cheers guys, appreciate the clarification. Curious that no MS guys weighed in
tho, I thought they were supposed to respond to all questions from MSDN subscribers. [quoted text, click to view] "Muntz" wrote:
> I'm getting this error generated by the local SMTP service on Win 2003. (We > use the local service to send emails, by connecting to our outbound mail > gateways using a smarthost entry.) > > The following recipient(s) could not be reached: > > emailaddress@hotmail.com. on 23/01/2006 4:01 PM > The format of the e-mail address is incorrect. Check the > address, look up the recipient in the Address Book, or contact the recipient > directly to find out the correct address. > <server.domain.net #5.1.3> > > Presumably this is getting dumped because of the trailing dot in the email > address. > > Now I know strictly speaking, the SMTP RFC doesn't permit trailing dots, but > I've been assured that mail with a trailing dot can certainly be delivered in > practice. > > Is this right? Is there someway to make the SMTP service send email > addresses with a trailing dot? > > We are MSDN Universal subscribers. Our no spam address is > munter@computershare.com >
On Mon, 30 Jan 2006 22:36:26 -0800, "Muntz" <munter@computershare.com>
[quoted text, click to view] wrote: >Cheers guys, appreciate the clarification. Curious that no MS guys weighed in >tho, I thought they were supposed to respond to all questions from MSDN >subscribers. >
Oh. I am accessing this through
http://www.microsoft.com/communities/newsgroups/en-us/default.aspx so I assumed this was one of their managed groups. No? [quoted text, click to view] "PeterD" wrote:
> On Mon, 30 Jan 2006 22:36:26 -0800, "Muntz" <munter@computershare.com> > wrote: > > >Cheers guys, appreciate the clarification. Curious that no MS guys weighed in > >tho, I thought they were supposed to respond to all questions from MSDN > >subscribers. > > > > Not here they don't. You have to go to the MSDN forums for that.
[quoted text, click to view]
"Al Mulnick" wrote: > No, I believe that's the public newsgroups. > I think you're looking for this link: > http://msdn.microsoft.com/newsgroups/managed/ > Well - search for "trailing dots" on that page and this thread shows up... [quoted text, click to view] > "Muntz" <munter@computershare.com> wrote in message
> news:F9E04DC1-99C2-4380-87D0-56E273A0FF85@microsoft.com... > > Oh. I am accessing this through > > http://www.microsoft.com/communities/newsgroups/en-us/default.aspx so I > > assumed this was one of their managed groups. No? > > > > "PeterD" wrote: > > > >> On Mon, 30 Jan 2006 22:36:26 -0800, "Muntz" <munter@computershare.com> > >> wrote: > >> > >> >Cheers guys, appreciate the clarification. Curious that no MS guys > >> >weighed in > >> >tho, I thought they were supposed to respond to all questions from MSDN > >> >subscribers. > >> > > >> > >> Not here they don't. You have to go to the MSDN forums for that. > >> > >
No, I believe that's the public newsgroups.
I think you're looking for this link: http://msdn.microsoft.com/newsgroups/managed/ [quoted text, click to view] "Muntz" <munter@computershare.com> wrote in message news:F9E04DC1-99C2-4380-87D0-56E273A0FF85@microsoft.com... > Oh. I am accessing this through > http://www.microsoft.com/communities/newsgroups/en-us/default.aspx so I > assumed this was one of their managed groups. No? > > "PeterD" wrote: > >> On Mon, 30 Jan 2006 22:36:26 -0800, "Muntz" <munter@computershare.com> >> wrote: >> >> >Cheers guys, appreciate the clarification. Curious that no MS guys >> >weighed in >> >tho, I thought they were supposed to respond to all questions from MSDN >> >subscribers. >> > >> >> Not here they don't. You have to go to the MSDN forums for that. >>
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