dualfroz 709e2d5b62 Normalise line breaks in S/MIME signed messages ...

openssl_pkcs7_sign() returns its headers and body with bare LF line
breaks. They were copied into the message verbatim, so signed mail was
rejected by SMTP servers that enforce RFC 5321 line endings with
550 5.6.11 SMTPSEND.BareLinefeedsAreIllegal.

Fixes #3067

2026-09-10 08:11:24 +02:00

..

PHPMailer

Normalise line breaks in S/MIME signed messages

2026-09-10 08:11:24 +02:00