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Message-ID is mandatory as well, or does SSMTP add it if necessary?

Giel
– Giel

2014-08-30 12:41:29 +00:00
Commented Aug 30, 2014 at 12:41
The RFC 5322 says that the message-id should be present, but it's not mandatory. Most of the servers will add one for you if it isn't. I don't know if SSMTP adds one for you.

Frederik Deweerdt
– Frederik Deweerdt

2014-08-30 16:00:18 +00:00
Commented Aug 30, 2014 at 16:00
Any chance of an example with HTML message plus attachment(s)?

RTF
– RTF

2016-10-17 16:12:55 +00:00
Commented Oct 17, 2016 at 16:12
@RTF late comment, but likely possible using multipart/mixed. See unix.stackexchange.com/a/250189/182991

bvj
– bvj

2018-09-30 05:57:15 +00:00
Commented Sep 30, 2018 at 5:57
@Giel SSMTP adds message id when necessary on my servers. I know I'm a bit late, but maybe someone else will neeed that information.

Kamil
– Kamil

2023-01-16 16:55:50 +00:00
Commented Jan 16, 2023 at 16:55

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