Add Message-ID header about email HOT 6 CLOSED

Hi @vdvm, sorry for the delay in getting back to you! I have tagged this as an enhancement, since I'd like to do some research regarding not only the best way to format the message id, but also the speediest way to create one.

I'll get back in touch with this soon!

from email.

Hi @jordan-wright,

No problem. I'm glad you are willing to look into it :)

After sending a mail to my google account i looked at the source and it showed [email protected] in the Message-Id header. So i went to investigate. It seems that, according to the RFC, a mail client should add a Message-Id header. I did not know that so i checked some mailer programs (like Thunderbird, swift, etc.) and they all add a Message-Id header.
(A possible workaround is telling your MTA to add missing headers but then your DKIM breaks)

Regarding the Message-Id, i'm not sure what solution is best. Maybe UUID.date.time@hostname will do.

from email.

According to RFC 822 and 2822 every email should have unique message-id in their header. I am a mutt user, I sort email by message-id which helps me sorting emails. suggestion made to have uuid-datetime@host-fqdn would be better or even we can use uuid-datetime-go-email@host-fqdn. I would love adding this feature

from email.

Looks like this one got put on the back-burner, but it shouldn't be hard to implement. Let me see what I can do.

from email.

After reviewing some options, I believe I will go with a format similar to that provided by Python's email package:

def make_msgid(idstring=None):
    """Returns a string suitable for RFC 2822 compliant Message-ID, e.g:

    <142480216486.20800.16526388040877946887@nightshade.la.mastaler.com>

    Optional idstring if given is a string used to strengthen the
    uniqueness of the message id.
    """
    timeval = int(time.time()*100)
    pid = os.getpid()
    randint = random.getrandbits(64)
    if idstring is None:
        idstring = ''
    else:
        idstring = '.' + idstring
    idhost = socket.getfqdn()
    msgid = '<%d.%d.%d%s@%s>' % (timeval, pid, randint, idstring, idhost)
    return msgid

The difference will be that, from what I can tell, there is no easy way to get the FQDN of the local host. With this being the case, I'll opt to use the hostname for now.

from email.

Ok, this should be good to go as of b359bc6. If you could please confirm, then I will consider this closed out.

If this still isn't working for you, please let me know and I'll re-open the issue.

Thanks for the great suggestion!

from email.