18

When I try to send a mail, I get the following error:

gnutls_handshake: An unexpected TLS packet was received.

This is my .muttrc (myname, myaddress and mymail are placeholders):

# Automatically log in to this mailbox at startup set imap_user="myname" set imap_pass="" set spoolfile="imaps://imap.myaddress/Inbox" set folder="imaps://imap.myaddress/Inbox" set record="=Sent" set postponed="=Drafts" # define how to send mails set smtp_url="smtps://$imap_user:[email protected]:587" # activate TLS if available on the server set ssl_starttls=yes # always use SSL when connecting to a server set ssl_force_tls=yes # wait to enter mailbox manually set imap_passive # Automatically poll subscribed mailboxes for new mail (new in 1.5.11) set imap_check_subscribed # Reduce polling frequency to a sane level set mail_check=60 # And poll the current mailbox more often (not needed with IDLE in post 1.5.11) #set timeout=10 # keep a cache of headers for faster loading (1.5.9+?) #set header_cache=~/.hcache # Display download progress every 5K set net_inc=5 # Cancel a message when subject is blank set abort_nosubject=yes # Set default editor set editor="gvim -v" # Asks to include message when replying set include=ask-yes # Asks to postpone a message when not sent set postpone=ask-yes # Ask before printing set print=ask-yes # set from to ensure mutt doesn't put [email protected] set from="myemail" set use_from=yes set envelope_from="yes"
Improve this question
2
  • Possibly an incompatibility with the server. It's going to be difficult to answer this without knowing the server. Can you try with accounts at other providers (e.g. create a throwaway Gmail address)? Commented Mar 1, 2013 at 23:40
  • I have had this problem and for some reason it seems to work OK on port 465. Commented Jul 16, 2013 at 21:08

1 Answer 1

Reset to default
32

When using smtp submission on port 587, the value for smtp_url should start with "smtp://", i.e. not with "smtps://". It is also important to make sure ssl_starttls is set to "yes", as correctly done in the config above.

While setting up my own server I got the exact same problem. Having access to logs on both the client & the server side, made it obvious that it surely was a client side issue.

A config option starting with smtps tells mutt to open a ssl encrypted connection to the server. However the server is expecting a clear text smtp session which transfers to become encrypted as soon as the client & server have done some negotiation.

Improve this answer
3
  • 2
    If I am right about this (just tested), the same is valid for the set folder="imaps:// entry. It should be set folder="imap:. For example: set folder = "imap://mail.domain.ext:143/". Commented Feb 17, 2016 at 12:56
  • @NikosAlexandris Please note: imap (143), imaps (993), smtp (25), smtps (465). While it is possible to run starttls towards some imap servers, imap typically has nothing corresponding to smtp submission (587). Commented Feb 1, 2020 at 23:23
  • 2021 ( Ubuntu Focal Fossa ) - smtps:// -> smtp:// for port 587. Thanks !!! Commented Apr 18, 2021 at 3:45

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.