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13 commits
v0.6 ... master

Author SHA1 Message Date
Thomas Hochstein 83a860be10 Next release is 0.7
0.6.1 was a maintenance release, but 0.6.2
should have been 0.7 already. Fix that for
the future.

Signed-off-by: Thomas Hochstein <thh@thh.name>
2024-11-19 23:17:10 +01:00
Thomas Hochstein 5d58730c56 Remove version from lead-in comment.
Signed-off-by: Thomas Hochstein <thh@thh.name>
2024-11-19 23:12:56 +01:00
Thomas Hochstein 93b863a102 Re-format ChangeLog.
Signed-off-by: Thomas Hochstein <thh@thh.name>
2024-11-19 23:12:43 +01:00
Thomas Hochstein 1a8bcbb788 Update POD documentation (repository, issue tracker).
Signed-off-by: Thomas Hochstein <thh@thh.name>
2024-05-27 00:58:32 +02:00
Thomas Hochstein e2b6ac2316 Add README.
Signed-off-by: Thomas Hochstein <thh@thh.name>
2024-05-25 23:33:00 +02:00
Thomas Hochstein 6d6b246d8c Change mail address.
Signed-off-by: Thomas Hochstein <thh@thh.name>
2020-08-23 22:39:36 +02:00
Thomas Hochstein f1cf1258ac Fix copyright in version display.
Signed-off-by: Thomas Hochstein <thh@inter.net>
2016-11-13 17:00:40 +01:00
Thomas Hochstein 2c2d7a35f6 Fix copyright and version in comment and POD, too.
Signed-off-by: Thomas Hochstein <thh@inter.net>
2016-11-13 17:00:11 +01:00
Thomas Hochstein 136e4166ed Fix display of CNAME/A records in log file.
print_dns_result() will show the number of records
found _and_ put a heading for this type of record
into the logfile.

So we can't get both right (short of changing
print_dns_result(), what I don't like to do
just now): either the count will be too high,
as we can't subtract wrong records from it, or
the "heading" will follow after the list of
records in the log. So we'll have to live with
the former, until print_dns_result() can be
fixed.

Signed-off-by: Thomas Hochstein <thh@inter.net>
2016-01-09 12:41:43 +01:00
Thomas Hochstein d531f437f0 Release v0.6.2
Signed-off-by: Thomas Hochstein <thh@inter.net>
2016-01-09 12:06:06 +01:00
Thomas Hochstein 2378aae83e Try to handle CNAMEs and resolve them to A records.
Change documentation accordingly.
Fixes .

Signed-off-by: Thomas Hochstein <thh@inter.net>
2016-01-09 12:03:15 +01:00
Thomas Hochstein 240c126484 Allow setting an empty envelope-from using '-s'.
Change documentation accordingly.
Update version and copyright dates.
Fixes .

Signed-off-by: Thomas Hochstein <thh@inter.net>
2016-01-09 11:19:36 +01:00
Thomas Hochstein ba787c2d08 Fix annoying error message (Release 0.6.1).
checkmail prints an error message like
  Argument "AI_NUMERICHOST" isn't numeric in subroutine
  entry at /usr/lib/perl5/Net/DNS/Resolver/Base.pm
  line 743.
every time. Change shebang to "perl -w" from "perl -W".

Update version number (in comment line too, where it
was stillt 0.5).

Update TODO and Changelog.

Include TODO in repository.

Release 0.6.1 (maintenance).

Signed-off-by: Thomas Hochstein <thh@inter.net>
2011-12-04 16:49:10 +01:00
5 changed files with 82 additions and 39 deletions

1
.gitignore vendored
View file

@ -1 +0,0 @@
TODO

View file

@ -1,48 +1,65 @@
Version 0.6 (2011-10-24)
checkmail 0.7 (unreleased)
* Re-format ChangeLog.
* Update POD documentation (repository, issue tracker).
* Add README.
* Change mail address.
* Fix display of CNAME/A records in log file.
checkmail 0.6.2 (2016-01-09)
* Try to handle CNAMEs and resolve them to A records.
Change documentation accordingly.
Fixes #55.
* Allow setting an empty envelope-from ('<>') using '-s'.
Change documentation accordingly.
Update version and copyright dates.
Fixes #54.
checkmail 0.6.1 (2011-12-04)
* Fix annoying error message (and some small changes).
checkmail 0.6 (2011-10-24)
* Don't temp-fail on random address check.
Thomas Hochstein <thh@inter.net> Mon Oct 24 22:27:01 2011 +0200
* Fix regexp for syntax check.
Thomas Hochstein <thh@inter.net> Sun Jul 24 12:28:26 2011 +0200
Version 0.5
checkmail 0.5
* Add syntax check for mail addresses.
Change documentation accordingly.
Fixes #11.
Thomas Hochstein <thh@inter.net> Sat Jul 23 23:53:22 2011 +0200
Version 0.4
checkmail 0.4
* Add overrides for configuration (MAIL FROM/EHLO).
New commandline options: -s <sender> and -e <EHLO>.
Change documentation accordingly.
Thomas Hochstein <thh@inter.net> Thu Jun 17 22:56:14 2010 +0200
* Replace splitaddress() by Mail::Address.
Thomas Hochstein <thh@inter.net> Wed Jun 16 22:08:22 2010 +0200
* -r: Create a really random localpart.
Add create_rand_addr().
Thomas Hochstein <thh@inter.net> Wed Jun 16 21:51:50 2010 +0200
* Analyze failure codes, don't fail on temporary failures.
Add analyze_smtp_reply().
Fixes #8.
Thomas Hochstein <thh@inter.net> Wed Jun 16 21:37:43 2010 +0200
Version 0.3
checkmail 0.3
* Add Changelog.
Thomas Hochstein <thh@inter.net> 2010-06-16 22:48:23 +0200
* Add documentation in POD format.
- Drop checkmail.readme
Thomas Hochstein <thh@inter.net> 2010-06-16 21:11:43 +0200
* Complete rewrite.
- use strict;
@ -55,10 +72,8 @@ Version 0.3
- batch processing: set exit status to highest generated value
Fixes #9.
Fixes #10.
Thomas Hochstein <thh@inter.net> 2010-06-16 21:11:23 +0200
Version 0.2
checkmail 0.2
* Initial check-in.
Thomas Hochstein <thh@inter.net> Wed Aug 3 22:00:00 2005 +0200

13
README.md Normal file
View file

@ -0,0 +1,13 @@
# checkmail
## Description
**checkmail** determines the mail server (or servers) responsible for the domain of the mail address (MXes); if none are available, it falls back on the host with the corresponding name (if available). It then establishes an SMTP connection and goes through the SMTP dialogue until just before an email is actually sent and checks whether mail to the recipient address would be accepted in principle. If desired, checkmail can also test sending to an address that is certainly invalid in order to check whether the replies from the recipient mail server are reliable at all or whether every recipient address is accepted (initially).
The sender of the apparent test email and the HELO parameter to be used can be configured in the script or passed as a parameter during the call.
Additional options can be used to check several addresses present in a text file, to display the complete SMTP dialogue or to force a connection to a specific mail server (instead of checking the relevant MXes).
## More information
Please see the [distribution page](https://th-h.de/net/software/checkmail/) (in German).

7
TODO Normal file
View file

@ -0,0 +1,7 @@
checkmail To-Do-Liste
=====================
* better analyze SMTP response codes

View file

@ -1,15 +1,15 @@
#! /usr/bin/perl -W
#! /usr/bin/perl -w
#
# checkmail Version 0.5 by Thomas Hochstein
# checkmail
#
# This script tries to verify the deliverability of (a) mail address(es).
#
# Copyright (c) 2002-2011 Thomas Hochstein <thh@inter.net>
# Copyright (c) 2002-2016 Thomas Hochstein <thh@thh.name>
#
# It can be redistributed and/or modified under the same terms under
# which Perl itself is published.
our $VERSION = "0.6";
our $VERSION = "0.7 (unreleased)";
################################# Configuration ################################
# Please fill in a working configuration!
@ -39,7 +39,7 @@ getopts('Vhqlrf:m:s:e:', \%options);
# -V: display version
if ($options{'V'}) {
print "$myself v $VERSION\nCopyright (c) 2010 Thomas Hochstein <thh\@inter.net>\n";
print "$myself v $VERSION\nCopyright (c) 2002-2016 Thomas Hochstein <thh\@thh.name>\n";
print "This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.\n";
exit(100);
};
@ -67,7 +67,7 @@ if (!$options{'f'} and !$ARGV[0]) {
};
# -s / -e: override configuration
$config{'from'} = $options{'s'} if $options{'s'};
$config{'from'} = $options{'s'} if defined($options{'s'});
$config{'helo'} = $options{'e'} if $options{'e'};
# -f: open file and read addresses to @adresses
@ -154,11 +154,20 @@ sub gettargets {
# no MX record found; log and try A record(s)
} else {
print_dns_result($domain,'MX',undef,$resolver->errorstring,$logr);
print(" Falling back to A record ...\n") if !($options{'q'});
# get A record(s)
print(" Falling back to A record(s) ...\n") if !($options{'q'});
# get A record(s)
# may get CNAMEs instead ...
if (my $query = $resolver->query($domain,'A','IN')) {
print_dns_result($domain,'A',$query->header->ancount,undef,$logr);
print_dns_result($domain,'A/CNAME',$query->header->ancount,undef,$logr);
foreach my $rr ($query->answer) {
if ($rr->type ne 'A') {
# report CNAMEs and don't add them to target list
if ($rr->type eq 'CNAME') {
printf (" ~ '%s' is a CNAME for '%s' and will be resolved accordingly. \n",$rr->name,$rr->cname) if !($options{'q'});
$$logr .= sprintf("- CNAME resolved: %s -> %s\n",$rr->name,$rr->cname);
}
next;
}
$targets{$rr->address} = 0;
$$logr .= sprintf("- %s\n",$rr->address);
};
@ -440,6 +449,7 @@ The hostname to be used for I<HELO> or I<EHLO> in the SMTP dialog.
=item B<$config{'from'}>
The sender address to be used for I<MAIL FROM> while testing.
May be empty ('') to set '<>' as MAIL FROM.
=back
@ -460,11 +470,12 @@ them in order of precedence (if necessary). It will run through the
SMTP dialog until just before the I<DATA> stage, i.e. doing I<EHLO>,
I<MAIL FROM> and I<RCPT TO>. If no MX is defined, B<checkmail> will
fall back to the I<example.org> host itself, provided there is at
least one A record defined in the DNS. If there are neither MX nor A
records for I<example.org>, mail is not deliverable and B<checkmail>
will fail accordingly. If no host can be reached, B<checkmail> will
fail, too. Finally B<checkmail> will fail if mail to the given
recipient is not accepted by the respective host.
least one A record defined in the DNS. CNAMEs will be accepted and
resolved here. If there are neither MX nor A records for
I<example.org>, mail is not deliverable and B<checkmail> will fail
accordingly. If no host can be reached, B<checkmail> will fail,
too. Finally B<checkmail> will fail if mail to the given recipient
is not accepted by the respective host.
If B<checkmail> fails, you'll not be able to deliver mail to that
address - at least not using the configured sender address and from
@ -600,25 +611,23 @@ The script itself.
=head1 BUGS
Please report any bugs or feature request to the author or use the
bug tracker at L<http://bugs.th-h.de/>!
bug tracker at L<https://code.virtcomm.de/thh/checkmail/issues>!
=head1 SEE ALSO
L<http://th-h.de/download/scripts.php> will have the current
L<https://th-h.de/net/software/checkmail/> will have the current
version of this program.
This program is maintained using the Git version control system. You
may clone L<git://code.th-h.de/mail/checkmail.git> to check out the
current development tree or browse it on the web via
L<http://code.th-h.de/?p=mail/checkmail.git>.
This program is maintained using the Git version control system at
L<https://code.virtcomm.de/thh/checkmail>.
=head1 AUTHOR
Thomas Hochstein <thh@inter.net>
Thomas Hochstein <thh@thh.name>
=head1 COPYRIGHT AND LICENSE
Copyright (c) 2002-2010 Thomas Hochstein <thh@inter.net>
Copyright (c) 2002-2016 Thomas Hochstein <thh@thh.name>
This program is free software; you may redistribute it and/or modify it
under the same terms as Perl itself.