I am trying to create a message filter that validates mail-from to be RFC5322 compliant formated.
Therefore I created with the help of https://regex101.com/r/3uvtNl/1 this valid paython Regex:
"^(?=.{1,64}@)[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,63}$"When creating a new filter using that regex I receive the follwing error:
[]> NEW
Enter filter script. Enter '.' on its own line to end.
devRFCValidator: if (mail-from != "^(?=.{1,64}@)[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,63}$") {
log-entry("MAG: RFC5322 RegExValidator - notvalid:" $EnvelopeFrom);
}
else
{
log-entry("MAG: RFC5322 RegExValidator - valid:" $EnvelopeFrom);
}
.
An error occurred during processing: \.
Choose the operation you want to perform:
- NEW - Create a new filter.
...
Does some know which version of paython regex is used inside AsyncOS 16.x?
Or any suggestins regarding this error?
Based on https://www.cisco.com/c/en/us/td/docs/security/ces/ces_16-0-2/user_guide/b_ESA_Admin_Guide_ces_16-0-2/b_ESA_Admin_Guide_12_1_chapter_01000.html#con_1296763 I didnot find any restrictions regarding this regex.
Thanks for support
