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Posted to user@commons.apache.org by Ricardo Bevilacqua <ri...@redmondsoftware.com> on 2013/02/15 22:44:01 UTC
Remove headers on multipart email
Hi to all!
I'm facing the following issue: my client has an SMTP server that
blocks incomming mails that have the "from" header for some reason. If
the mail doesn't have this header, it works.
So my question is if there is a chance to remove this header.
I've already tried to set the headers to "null" like this:
<code>
email.setHeaders(null);
</code>
But that gives an exception. I also tried to set the From header empty:
<code>
HashMap <String, String> headers = new HashMap<String, String>();
headers.put("From", "");
email.setHeaders(headers);
</code>
But that gives an exception as well.
Your help is greatly appreciated.
Greetings,
Richard.
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Re: Remove headers on multipart email
Posted by Siegfried Goeschl <sg...@gmx.at>.
Hi Ricardo,
that is rather strange, since the "from" is the FROM address and is
AFAIK mandatory according to RFC822 - so you are asked to send an
invalid MimeMessage?! Can you check out if you can get the underlying
MimeMessage (Email is just a wrapper) and tinker with it ...
Cheers,
Siegfried Goeschl
On 15.02.13 22:44, Ricardo Bevilacqua wrote:
> Hi to all!
>
> I'm facing the following issue: my client has an SMTP server that
> blocks incomming mails that have the "from" header for some reason. If
> the mail doesn't have this header, it works.
>
> So my question is if there is a chance to remove this header.
>
> I've already tried to set the headers to "null" like this:
>
> <code>
>
> email.setHeaders(null);
>
> </code>
>
> But that gives an exception. I also tried to set the From header empty:
>
> <code>
>
> HashMap <String, String> headers = new HashMap<String, String>();
>
> headers.put("From", "");
>
> email.setHeaders(headers);
>
> </code>
>
> But that gives an exception as well.
>
> Your help is greatly appreciated.
>
> Greetings,
>
> Richard.
>
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> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
> For additional commands, e-mail: user-help@commons.apache.org
>
>
>
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Re: Remove headers on multipart email
Posted by "cacsar@gmail.com" <ca...@gmail.com>.
Here's the bit of the RFC. So the field is optional, but needless to say
blocking those messages is rather strange. Is it hoping to receive
automated messages only and rejecting spec compliant messages as a spam
control feature?
4.4.1. FROM / RESENT-FROM
This field contains the identity of the person(s) who wished
this message to be sent. The message-creation process should
default this field to be a single, authenticated machine
address, indicating the AGENT (person, system or process)
entering the message. If this is not done, the "Sender" field
MUST be present. If the "From" field IS defaulted this way,
the "Sender" field is optional and is redundant with the
"From" field. In all cases, addresses in the "From" field
must be machine-usable (addr-specs) and may not contain named
lists (groups).
On Sat, Feb 16, 2013 at 12:11 PM, Thomas Neidhart <thomas.neidhart@gmail.com
> wrote:
> On 02/15/2013 10:44 PM, Ricardo Bevilacqua wrote:
> > Hi to all!
> >
> > I'm facing the following issue: my client has an SMTP server that
> > blocks incomming mails that have the "from" header for some reason. If
> > the mail doesn't have this header, it works.
> >
> > So my question is if there is a chance to remove this header.
> >
> > I've already tried to set the headers to "null" like this:
> >
> > <code>
> >
> > email.setHeaders(null);
> >
> > </code>
> >
> > But that gives an exception. I also tried to set the From header empty:
> >
> > <code>
> >
> > HashMap <String, String> headers = new HashMap<String, String>();
> >
> > headers.put("From", "");
> >
> > email.setHeaders(headers);
> >
> > </code>
> >
> > But that gives an exception as well.
> >
> > Your help is greatly appreciated.
>
> Hi,
>
> as Siegfried already mentioned, this is kind of odd. I would first
> investigate why the mail server rejects emails with a valid from header.
>
> If you really want to change/omit the from header you will have to use
> reflection to set it to a null value or update the embedded mime message
> (depending on whether buildMimeMessage has already been called in your
> case).
>
> Thomas
>
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> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
> For additional commands, e-mail: user-help@commons.apache.org
>
>
Re: Remove headers on multipart email
Posted by Thomas Neidhart <th...@gmail.com>.
On 02/15/2013 10:44 PM, Ricardo Bevilacqua wrote:
> Hi to all!
>
> I'm facing the following issue: my client has an SMTP server that
> blocks incomming mails that have the "from" header for some reason. If
> the mail doesn't have this header, it works.
>
> So my question is if there is a chance to remove this header.
>
> I've already tried to set the headers to "null" like this:
>
> <code>
>
> email.setHeaders(null);
>
> </code>
>
> But that gives an exception. I also tried to set the From header empty:
>
> <code>
>
> HashMap <String, String> headers = new HashMap<String, String>();
>
> headers.put("From", "");
>
> email.setHeaders(headers);
>
> </code>
>
> But that gives an exception as well.
>
> Your help is greatly appreciated.
Hi,
as Siegfried already mentioned, this is kind of odd. I would first
investigate why the mail server rejects emails with a valid from header.
If you really want to change/omit the from header you will have to use
reflection to set it to a null value or update the embedded mime message
(depending on whether buildMimeMessage has already been called in your
case).
Thomas
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RE: Remove headers on multipart email
Posted by Gabriel Rossetti <ga...@trafigura.com>.
I think this means that your client cannot receive emails from most people on earth :-), maybe you should do as described below and make sure there is not a config mistake, most if not all email clients will include the "From:" header. So unless this is an internal email only SMTP server (in this case you don't need anti spam software anyways since it's not visible to the outside world) then I would investigate.
What some servers do however is reject msgs that have a "From:" header that is not a valid/existing email from their domain (e.g. the SMTP servers domain is toto.com and the email is from joe@toto.com but no joe account exists) or the domain does not exist at all. One of these scenarios is probably what is happening, or a variant.
Cheers,
Gabriel
________________________________________
From: Ricardo Bevilacqua [rus.spes@gmail.com]
Sent: Friday, March 01, 2013 16:55
To: user@commons.apache.org
Subject: Re: Remove headers on multipart email
Hi,
Its a really odd thing that im asking, I know. I think the problem
with the server is that it rejects messages with a custom FROM as an
anti-spam feature, just like Caesar said. If I send a mail manually
with Telnet, without specifying the FROM field, the mail is sent.
Thanks in advance!
Richard.
On Sat, Feb 16, 2013 at 12:11 PM, Thomas Neidhart <thomas.neidhart@gmail.com
> wrote:
> On 02/15/2013 10:44 PM, Ricardo Bevilacqua wrote:
> > Hi to all!
> >
> > I'm facing the following issue: my client has an SMTP server that
> > blocks incomming mails that have the "from" header for some reason. If
> > the mail doesn't have this header, it works.
> >
> > So my question is if there is a chance to remove this header.
> >
> > I've already tried to set the headers to "null" like this:
> >
> > <code>
> >
> > email.setHeaders(null);
> >
> > </code>
> >
> > But that gives an exception. I also tried to set the From header empty:
> >
> > <code>
> >
> > HashMap <String, String> headers = new HashMap<String, String>();
> >
> > headers.put("From", "");
> >
> > email.setHeaders(headers);
> >
> > </code>
> >
> > But that gives an exception as well.
> >
> > Your help is greatly appreciated.
>
> Hi,
>
> as Siegfried already mentioned, this is kind of odd. I would first
> investigate why the mail server rejects emails with a valid from header.
>
> If you really want to change/omit the from header you will have to use
> reflection to set it to a null value or update the embedded mime message
> (depending on whether buildMimeMessage has already been called in your
> case).
>
> Thomas
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
> For additional commands, e-mail: user-help@commons.apache.org
>
>
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Re: Remove headers on multipart email
Posted by Ricardo Bevilacqua <ru...@gmail.com>.
Hi,
Its a really odd thing that im asking, I know. I think the problem
with the server is that it rejects messages with a custom FROM as an
anti-spam feature, just like Caesar said. If I send a mail manually
with Telnet, without specifying the FROM field, the mail is sent.
Thanks in advance!
Richard.
On Sat, Feb 16, 2013 at 12:11 PM, Thomas Neidhart <thomas.neidhart@gmail.com
> wrote:
> On 02/15/2013 10:44 PM, Ricardo Bevilacqua wrote:
> > Hi to all!
> >
> > I'm facing the following issue: my client has an SMTP server that
> > blocks incomming mails that have the "from" header for some reason. If
> > the mail doesn't have this header, it works.
> >
> > So my question is if there is a chance to remove this header.
> >
> > I've already tried to set the headers to "null" like this:
> >
> > <code>
> >
> > email.setHeaders(null);
> >
> > </code>
> >
> > But that gives an exception. I also tried to set the From header empty:
> >
> > <code>
> >
> > HashMap <String, String> headers = new HashMap<String, String>();
> >
> > headers.put("From", "");
> >
> > email.setHeaders(headers);
> >
> > </code>
> >
> > But that gives an exception as well.
> >
> > Your help is greatly appreciated.
>
> Hi,
>
> as Siegfried already mentioned, this is kind of odd. I would first
> investigate why the mail server rejects emails with a valid from header.
>
> If you really want to change/omit the from header you will have to use
> reflection to set it to a null value or update the embedded mime message
> (depending on whether buildMimeMessage has already been called in your
> case).
>
> Thomas
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@commons.apache.org
> For additional commands, e-mail: user-help@commons.apache.org
>
>
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