Hi, I have a postfix that work very well on front-end of an exchange server. Since 2 weeks, emails from Gmail (and few others domains) with attachment > 4MB does not arrive, and after a long period of time, the sender receives an undeliverable mail with the error message "write error: generic::deadline_exceeded: write timeout (180000ms)" We tried to rebuild a new server and the problem is still there (and still works well with the other domains). Below the logs from /var/log/maillog : (the messages listed below appear after a certain period of time) Code: timeout after DATA (179151 bytes) from mail-wj0-f193.google.com[209.85.210.193] We have set log in verbose mode, and the log stops at this point : Code: postfix/cleanup[9013]: cleanup_header_callback: 'X-Attachment-Id: f_iyo78pi70' We changed these parameters without success : Code: header_size_limit message_size_limit smtp_data_xfer_timeout smtp_data_init_timeout Did anyone had the same problem and found a solution, or any idea how to resolve this issue. Any suggestions are welcome. Thx main.cf : Code: mydomain = XXXXX.fr myhostname = srv-test.XXXXX.fr mydestination = XXXXX.fr, YYYYYY.fr mynetworks = 127.0.0.0/8, 172.16.0.0/16 relay_domains = $mydestination smtpd_recipient_restrictions = permit_mynetworks, reject_unauth_destination, reject_invalid_hostname, reject_unauth_pipelining, reject_non_fqdn_sender, reject_unknown_recipient_domain, reject_unknown_sender_domain transport_maps = hash:/etc/postfix/transport local_recipient_maps = content_filter = smtp-amavis:[127.0.0.1]:10024 virtual_alias_maps = hash:/etc/postfix/virtual master.cf Code: # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - n - - smtpd -v pickup fifo n - - 60 1 pickup -o content_filter= -o receive_override_options=no_header_body_checks smtp-amavis unix - - - - 2 smtp -v -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes -o max_use=20 127.0.0.1:10025 inet n - - - - smtpd -v -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_delay_reject=no -o smtpd_client_restrictions=permit_mynetworks,reject -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o smtpd_data_restrictions=reject_unauth_pipelining -o smtpd_end_of_data_restrictions= -o mynetworks=127.0.0.0/8 -o smtpd_error_sleep_time=0 -o smtpd_soft_error_limit=1001 -o smtpd_hard_error_limit=1000 -o smtpd_client_connection_count_limit=0 -o smtpd_client_connection_rate_limit=0 -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks cleanup unix n - n - 0 cleanup -v qmgr unix n - n 300 1 qmgr tlsmgr unix - - n 1000? 1 tlsmgr rewrite unix - - n - - trivial-rewrite bounce unix - - n - 0 bounce defer unix - - n - 0 bounce trace unix - - n - 0 bounce verify unix - - n - 1 verify flush unix n - n 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - n - - smtp relay unix - - n - - smtp showq unix n - n - - showq error unix - - n - - error retry unix - - n - - error discard unix - - n - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache
