> "250 2.0.0 OK 1560930762 l7si9891184wrx.266 - gsmtp" > > is acceptable, while > > "250 2.1.5 OK w9si551343wmd.47 - gsmtp" > > is a protocol error?
I fired up ye olde grep on mail.python.org and found some incidients there as well: # zegrep -c "status=bounced \(Protocol error: host gmail.* 250 2\.1\.5" /var/log/mail.log* /var/log/mail.log:2 /var/log/mail.log.1:6 /var/log/mail.log.2.gz:8 /var/log/mail.log.3.gz:3 /var/log/mail.log.4.gz:9 /var/log/mail.log.5.gz:10 /var/log/mail.log.6.gz:34 /var/log/mail.log.7.gz:21 /var/log/mail.log.8.gz:26 /var/log/mail.log.9.gz:8 /var/log/mail.log.10.gz:3 /var/log/mail.log.11.gz:5 /var/log/mail.log.12.gz:4 /var/log/mail.log.13.gz:5 /var/log/mail.log.14.gz:9 /var/log/mail.log.15.gz:12 /var/log/mail.log.16.gz:8 /var/log/mail.log.17.gz:6 /var/log/mail.log.18.gz:23 /var/log/mail.log.19.gz:17 /var/log/mail.log.20.gz:8 /var/log/mail.log.21.gz:9 /var/log/mail.log.22.gz:5 /var/log/mail.log.23.gz:0 /var/log/mail.log.24.gz:0 /var/log/mail.log.25.gz:5 /var/log/mail.log.26.gz:4 /var/log/mail.log.27.gz:19 /var/log/mail.log.28.gz:7 -- [*] sys4 AG https://sys4.de, +49 (89) 30 90 46 64 Schleißheimer Straße 26/MG, 80333 München Sitz der Gesellschaft: München, Amtsgericht München: HRB 199263 Vorstand: Patrick Ben Koetter, Marc Schiffbauer Aufsichtsratsvorsitzender: Florian Kirstein
