Probably OT here, but sometimes I get this error (Debian Buster, original packages):
mail.info: Apr 12 18:01:16 opendkim[13977]: 828FE7F581: s=202103 d=example.com SSL error:0407008A:rsa routines:RSA_padding_check_PKCS1_type_1:invalid padding; error: 04067072:rsa routines:rsa_ossl_public_decrypt:padding check failed I noticed that sometimes the DKIM was ok and sometimes it ended up in the above mentioned error. After some testing I created a loop to send 2000 mails each second: for i in $(seq 1 2000) ; do echo -e "this is a test" | \ mail -s "test ${i}" u...@example.com; sleep 1 ; done minute 1: the DKIM is OK minute 2: errors, minute 3: the DKIM is OK minute 4: errors, minute 5: the DKIM is OK minute 6: errors, minute 7: the DKIM is OK minute 8: errors, etc etc I have really no idea where to start searching. It is perhaps a opendkim or an openssl issue. Or maybe some cache somewhere? DNS is ok, TTL of DKIM record is 3600. Haystack, needle, but I need to find the haystack first. Anyone a hint? R. -- richard lucassen http://contact.xaq.nl/