Outbound SMTP mail EHLO failing
Nightfox
outbound internet email via SMTP. When I try to send internet email, I see
this in my mail server log window:
!Delivery attempt #1 FAILED (smtp.comcast.net replied with:
"501 EHLO requires valid address"
instead of the expected reply:
"250 ...") for message ...
What might be the issue? I'm guessing that since it worked before, this is
probably an issue with my ISP?
Nightfox
---
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--- Synchronet 3.15a-Win32 NewsLink 1.92
* Vertrauen - Riverside County, California - telnet://vert.synchro.net
Dreamer
Re: Outbound SMTP mail EHLO failing
By: Nightfox to All on Mon Jul 04 2011 03:08 pm
> !Delivery attempt #1 FAILED (smtp.comcast.net replied with:
> "501 EHLO requires valid address"
> instead of the expected reply:
> "250 ...") for message ...
Looks like your ISP is verifying your domain name against their records in the
EHLO (extended HELO) command. You may have to find another option for mail
delivery. I recommend simply routing through DM's systems -- less headaches.
Incidentally, if you want to complain loudly about it, this behavior violates
RFC 1123:
5.2.5 HELO Command: RFC-821 Section 3.5
The sender-SMTP MUST ensure that the <domain> parameter in a
HELO command is a valid principal host domain name for the
client host. As a result, the receiver-SMTP will not have to
perform MX resolution on this name in order to validate the
HELO parameter.
The HELO receiver MAY verify that the HELO parameter really
corresponds to the IP address of the sender. However, the
receiver MUST NOT refuse to accept a message, even if the
sender's HELO command fails verification.
Fail. :p
---
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Nightfox
Re: Outbound SMTP mail EHLO failing
> Looks like your ISP is verifying your domain name against their records in t
> EHLO (extended HELO) command. You may have to find another option for mail
> delivery. I recommend simply routing through DM's systems -- less headaches
I've changed it to relay through Vertrauen. I was doing that for a while, when
I was unable to use my ISP for it, but I tended to think of relaying through
Vertrauen as a "last resort".
> receiver MUST NOT refuse to accept a message, even if the
> sender's HELO command fails verification.
> Fail. :p
:P Silly ISP..
Nightfox
---
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Dreamer
Re: Outbound SMTP mail EHLO failing
> I've changed it to relay through Vertrauen. I was doing that for a while,
> when I was unable to use my ISP for it, but I tended to think of relaying
> through Vertrauen as a "last resort".
I think of it as part of the package. LOL... I've had problems trying to
direct send in the past with my emails landing in spam boxes, or servers
blocking me completely based on my IP range. Have yet to have a problem with
the Vert relay.
> > receiver MUST NOT refuse to accept a message, even if the
> > sender's HELO command fails verification.
>
> > Fail. :p
>
> :P Silly ISP..
It really pisses me off when they break a standard like this. They should
accept the message. It's not their job to filter it, that should be up to the
end recipient.
---
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Nightfox
Re: Outbound SMTP mail EHLO failing
> > > receiver MUST NOT refuse to accept a message, even if the
> > > sender's HELO command fails verification.
> It really pisses me off when they break a standard like this. They should
> accept the message. It's not their job to filter it, that should be up to t
> end recipient.
It's pissing me off too.. And this just started happening. I was relaying
through my ISP until I noticed this a few days ago.
Nightfox
---
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mro
.,: This is something about Outbound SMTP mail EHLO failing,
Dreamer said it to Nightfox on Tue Jul 05 2011 12:19 pm
--����������������������-����---���������������---���������--��������
> I think of it as part of the package. LOL... I've had problems trying to
> direct send in the past with my emails landing in spam boxes, or servers
> blocking me completely based on my IP range. Have yet to have a problem wit
you're supposed to forward through your isp, not send directly.
IF you are on a residential ip range.
mro
.,: This is something about Outbound SMTP mail EHLO failing,
--����������������������-����---���������������---���������--��������
> outbound internet email via SMTP. When I try to send internet email, I see
> this in my mail server log window:
> !Delivery attempt #1 FAILED (smtp.comcast.net replied with: "501 EHLO
> requires valid address" instead of the expected reply: "250 ...")
> for message ...
> What might be the issue? I'm guessing that since it worked before, this is
> probably an issue with my ISP?
i have this issue sometimes and i'm on roadrunner.
perhaps it's a synchronet issue or it's our provider missing out
on some commands our servers are sending
mro
.,: This is something about Outbound SMTP mail EHLO failing,
--����������������������-����---���������������---���������--��������
> It's pissing me off too.. And this just started happening. I was relaying
> through my ISP until I noticed this a few days ago.
try shutting off the server [maybe rebooting] and do some more tests.
Dreamer
Re: Outbound SMTP mail EHLO failing
> > It's pissing me off too.. And this just started happening. I was
> > relaying through my ISP until I noticed this a few days ago.
>
> try shutting off the server [maybe rebooting] and do some more tests.
Looks like mro is right. I telnetted to comcast's mail server, and was able to
get past the greeting (250).
220 omta17.emeryville.ca.mail.comcast.net comcast ESMTP server ready
ehlo
501 EHLO requires valid address
ehlo setxbbs.synchro.net
250-omta17.emeryville.ca.mail.comcast.net hello [66.25.237.142], pleased to
meet you
Look through your SMTP logs. If your logging isn't set up for recording the
commands you're sending, turn that on. Synchronet *should* be sending your
domain name after 'ehlo', so the mail server knows who it's talking to.
To double check that one of comcast's servers is not misconfigured, from your
own system, telnet to comcast ("telnet smtp.comcast.net 25"), and type "ehlo
digdist.bbsindex.com". You should get the above response. If not, go ahead
and email them; some comcast admin somewhere forked it up.
---
� Synchronet � Southeast Texas BBS -- setxbbs.synchro.net
Dreamer
Re: Outbound SMTP mail EHLO failing
> you're supposed to forward through your isp, not send directly.
> IF you are on a residential ip range.
If I was the only one who intended to use the board's email, I would do that.
I just don't like the thought of Roadrunner seeing someone else using my system
to relay email through them. Say I've got five regular dialup users and they
regularly use setxbbs.synchro.net for email. They each send five emails a day.
I typically send about ten. That makes for an average of thirty five emails,
possibly a high of fifty on a busy day, with six distinct from and return
fields.
I'd rather route through Vert until I can afford a commercial package.
mro
.,: This is something about Outbound SMTP mail EHLO failing,
--����������������������-����---���������������---���������--��������
> commands you're sending, turn that on. Synchronet *should* be sending your
> domain name after 'ehlo', so the mail server knows who it's talking to.
i think something just got borked, and it wont stay like that.
i would recommend doing some tests.
i wouldnt advise contacting comcrap about this before reviewing their TOS.
it could be running a server of any sort is not allowed.
mro
.,: This is something about Outbound SMTP mail EHLO failing,
--����������������������-����---���������������---���������--��������
> I just don't like the thought of Roadrunner seeing someone else using my sys
> to relay email through them. Say I've got five regular dialup users and the
> regularly use setxbbs.synchro.net for email. They each send five emails a d
> I typically send about ten. That makes for an average of thirty five emails
> possibly a high of fifty on a busy day, with six distinct from and return
> fields.
why do these people have to use your system when they can use hotmail, yahoo,
gmail?
the reason why you should forward your email through your isp is so you dont
get filtered by everything your system would send an email address too.
bbses dont really have to be email providers for their users; it's just
inviting trouble.
and before you forward through vert you should consider if those spam
blacklists he uses will cause problems.
those lists are WAY too restrictive to be trusted.
Sfqpex
Re: Outbound SMTP mail EHLO failing
> Re: Outbound SMTP mail EHLO failing
> By: mro to Dreamer on Tue Jul 05 2011 10:57 pm
>
> > you're supposed to forward through your isp, not send directly.
> > IF you are on a residential ip range.
>
> If I was the only one who intended to use the board's email, I would do that
>
> I just don't like the thought of Roadrunner seeing someone else using my sys
> to relay email through them. Say I've got five regular dialup users and the
> regularly use setxbbs.synchro.net for email. They each send five emails a d
> I typically send about ten. That makes for an average of thirty five emails
> possibly a high of fifty on a busy day, with six distinct from and return
> fields.
>
> I'd rather route through Vert until I can afford a commercial package.
>
>
I was trying to figure out how to route through VERT, but didn't see anything
on the synch website about this.. Is it part of the Dove-Net setup that I
completely missed here??
---
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Dreamer
Re: Outbound SMTP mail EHLO failing
> why do these people have to use your system when they can use hotmail,
> yahoo, gmail?
I plan on offering a small freenet for the few who might want to use it. There
are actually a few people out there who don't really use the Internet much
except for email.
> the reason why you should forward your email through your isp is so you
> dont get filtered by everything your system would send an email address
> too.
That's why I stopped using direct mail. Some ISPs won't even accept the email.
> bbses dont really have to be email providers for their users; it's just
> inviting trouble.
You're right, they don't have to be. But, some of us choose to offer that
service. I disagree that it's inviting trouble; it's no more trouble than if
one were using one of the big free mail providers.
> and before you forward through vert you should consider if those spam
> blacklists he uses will cause problems.
>
> those lists are WAY too restrictive to be trusted.
The forward is only for sending email, not receiving. Replies come straight to
my system. I've found I only had to remove one of the blacklists (I forget
which one now). The way I have things set up, I've been using Synchronet's
email exclusively now for over three months with no problems.
As for offering to users, it's a personal choice.
---
� Synchronet � Southeast Texas BBS -- setxbbs.synchro.net
Dreamer
Re: Outbound SMTP mail EHLO failing
> I was trying to figure out how to route through VERT, but didn't see
> anything on the synch website about this.. Is it part of the Dove-Net
> setup that I completely missed here??
I can't find any official docs or howtos on it, but there's been plenty of
discussion on Dovenet. If you don't have a copy of the messages, log into Vert
and search.
The short answer, though, is to set the relay up using your QWK
username/password for your BBS and point it to vert.synchro.net. There's
another instance of Synchronet running on a Linux system that I believe is
considered to be faster at processing mail; offhand I think its address is
cvs.synchro.net.
I can swear I've seen a doc on this, but I can't find it at the moment. DM
should be around later today or tomorrow, though. :)
---
� Synchronet � Southeast Texas BBS -- setxbbs.synchro.net
mro
.,: This is something about Outbound SMTP mail EHLO failing,
--����������������������-����---���������������---���������--��������
> You're right, they don't have to be. But, some of us choose to offer that
> service. I disagree that it's inviting trouble; it's no more trouble than i
> one were using one of the big free mail providers.
i mean it is trouble for the provider[YOU]. the only people who would search
for and use someone like yourself would be a spammer. you are a spammer's
dream.
i'm not just hypothesizing, these are things i've seen over the years.
> As for offering to users, it's a personal choice.
make sure it is allowed by your internet service provider.
there have been people who ran synchronet and who have posted on dovenet who
have been shut down by violating their tos and providing email, or having
some user on their system spam usenet using their system.
Dreamer
Re: Outbound SMTP mail EHLO failing
> i mean it is trouble for the provider[YOU]. the only people who would
> search for and use someone like yourself would be a spammer. you are a
> spammer's dream.
This is why I want to get a commercial connection. And I disagree about the
spammers; there still exist freenets, and some people use those as their
primary accounts.
I am not a spammer's dream. I've locked down my email system so that only
those people I want to allow can send email.
220 setxbbs.synchro.net Synchronet SMTP Server 1.515-Win32 Ready
helo netbook
250 setxbbs.synchro.net
auth plain <redacted>
235 User Authenticated
mail from: blue....@setxbbs.synchro.net
250 OK
rcpt to: perk...@yahoo.com
553 Relaying through this server requires authentication. Please authenticate
before sending.
This is a level 50 user account I keep for testing with the appropriate
restriction to disallow network mail.
Digital Man
Re: Outbound SMTP mail EHLO failing
> Re: Outbound SMTP mail EHLO failing
> By: Dreamer to mro on Tue Jul 05 2011 23:46:31
>
> > Re: Outbound SMTP mail EHLO failing
> > By: mro to Dreamer on Tue Jul 05 2011 10:57 pm
> >
> > > you're supposed to forward through your isp, not send directly.
> > > IF you are on a residential ip range.
> >
> > If I was the only one who intended to use the board's email, I would do
> > that
> > I just don't like the thought of Roadrunner seeing someone else using my
> > sys to relay email through them. Say I've got five regular dialup users
> > and the regularly use setxbbs.synchro.net for email. They each send
> > five emails a d I typically send about ten. That makes for an average
> > of thirty five emails possibly a high of fifty on a busy day, with six
> > distinct from and return fields.
> >
> > I'd rather route through Vert until I can afford a commercial package.
> >
> >
>
> I was trying to figure out how to route through VERT, but didn't see
> anything on the synch website about this.. Is it part of the Dove-Net
> setup that I completely missed here??
As long as your authenticate with SMTP (e.g. using a user or QWKnet account on
Vert), you can relay mail through it.
digital man
Synchronet "Real Fact" #30:
The Synchronet IRC server (ircd) was written in JS by Randy Sommerfeld (Cyan).
Nightfox
Re: Outbound SMTP mail EHLO failing
> try shutting off the server [maybe rebooting] and do some more tests.
Thanks for the tip.
Nightfox
---
� Synchronet � Digital Distortion BBS - digdist.bbsindex.com
Nightfox
Re: Outbound SMTP mail EHLO failing
> > try shutting off the server [maybe rebooting] and do some more tests.
> Looks like mro is right. I telnetted to comcast's mail server, and was able
> get past the greeting (250).
I didn't think of trying that.. I'll try it and see if it works.
Nightfox
---
� Synchronet � Digital Distortion BBS - digdist.bbsindex.com
Sfqpex
Re: Outbound SMTP mail EHLO failing
> >
> > I was trying to figure out how to route through VERT, but didn't see
> > anything on the synch website about this.. Is it part of the Dove-Net
> > setup that I completely missed here??
>
> As long as your authenticate with SMTP (e.g. using a user or QWKnet account
> Vert), you can relay mail through it.
>
> digital man
>
> Synchronet "Real Fact" #30:
> The Synchronet IRC server (ircd) was written in JS by Randy Sommerfeld (Cyan
>
Hi DM,
Thanks! I was trying to figure out where in SCFG I make those settings.. I
see an entry for Internet E-Mail -- Is that correct?
Sorry for the newbie questions..
---
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Digital Man
Re: Outbound SMTP mail EHLO failing
> Re: Outbound SMTP mail EHLO failing
> By: Digital Man to Sfqpex on Wed Jul 06 2011 20:56:26
>
> > >
> > > I was trying to figure out how to route through VERT, but didn't see
> > > anything on the synch website about this.. Is it part of the
> > > Dove-Net setup that I completely missed here??
> >
> > As long as your authenticate with SMTP (e.g. using a user or QWKnet
> > account Vert), you can relay mail through it.
> Hi DM,
>
> Thanks! I was trying to figure out where in SCFG I make those settings..
> I see an entry for Internet E-Mail -- Is that correct?
Well, that's where you set your domain/host name, but the mail server settings
go in your ctrl/sbbs.ini file (and can be edited with the
SBBSCTRL:Mail->Configure menu option, if you running Windows). See
http://wiki.synchro.net/faq:tcpip#send_mail for details.
digital man
Synchronet "Real Fact" #3:
Synchronet version 3 is written mostly in C, with some C++, x86 ASM, and Pascal.