Ahoj,
zhruba pred tydnem nam zakaznik oznamil, ze posilani emailu na gmail je s velkou prodlevou.
Mar 20 11:58:24 MAILSERVER postfix/smtp[1833743]: Untrusted TLS connection established to gmail-smtp-in.l.google.com[108.177.97.26]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X
25519 server-signature ECDSA (P-256) server-digest SHA256
Mar 20 11:58:27 MAILSERVER postfix/smtp[1833743]: 4PgBYB1wBtz76: to=<SOMEUSER@gmail.com>, relay=gmail-smtp-in.l.google.com[108.177.97.26]:25, delay=4.8, delays=0.1/0/2.4/2.3, dsn=2.0.0, status=sent (2
50 2.0.0 OK 1679309906 l4-20020a056a00140400b005a8d595767asi10382056pfu.252 - gsmtp)
Z logu mam prumerne delay zhruba mezi 4-5s na gmail.com. Kolisa to nekde mezi 3. (navazani spojeni) a 4. (predani mailu) delay hodnotou. Ve chvili, kdy posleme hromadne emaily, tak se to zpozdeni sakra nascita. Ten zpomaleny stav trva doted.
Pro srovnani:
Mar 20 12:00:04 MAILSERVER postfix/smtp[1833743]: Untrusted TLS connection established to mx1.seznam.cz[2a02:598:2::1090]:25: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-25
6) server-signature RSA-PSS (4096 bits) server-digest SHA256
Mar 20 12:00:04 MAILSERVER postfix/smtp[1833743]: 4PgBb74v0Pz76: to=<SOMEUSER@seznam.cz>, relay=mx1.seznam.cz[2a02:598:2::1090]:25, delay=1.3, delays=0.11/0/1.1/0.08, dsn=2.0.0, status=sent (250 2.0.0 message q
ueued (szn-id:4d044e47-a9b6-4975-a1bf-f1f84450a1fb))
Mar 20 11:56:32 MAILSERVER postfix/smtp[1833743]: Untrusted TLS connection established to centrum-cz-10mx2.eco-mx.cz[46.255.227.8]:25: TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)
Mar 20 11:56:32 MAILSERVER postfix/smtp[1833743]: 4PgBW40r3Qz76: to=<SOMEUSER@centrum.cz>, relay=centrum-cz-10mx2.eco-mx.cz[46.255.227.8]:25, delay=0.35, delays=0.1/0.01/0.06/0.18, dsn=2.0.0, status=sent (250 ok: Message 11722009 accepted)
Netrpi nekdo stejnym zpozdenim ci nekomunikoval nekdo ohledne toho s googlem jiz? Dela nam to na ruznych konektivitach/verzich postfixu, takze serverovou stranu muzu vyloucit. A nezda se mi, ze by za to mohlo TLSv1.3.
Diky.